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47 <div class="title">image_view_factory.hpp</div> </div>
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50 <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_GIL_IMAGE_VIEW_FACTORY_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_IMAGE_VIEW_FACTORY_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <boost/gil/color_convert.hpp></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/gil/dynamic_step.hpp></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <boost/gil/gray.hpp></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/gil/image_view.hpp></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <boost/gil/metafunctions.hpp></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <boost/gil/point.hpp></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <boost/gil/detail/mp11.hpp></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <boost/assert.hpp></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">struct </span>default_color_converter;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1transposed__type.html"> 40</a></span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1transposed__type.html">transposed_type</a>;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1dynamic__xy__step__type.html">dynamic_xy_step_type</a></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  : <a class="code" href="structboost_1_1gil_1_1dynamic__y__step__type.html">dynamic_y_step_type</a><typename dynamic_x_step_type<View>::type> {};</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1dynamic__xy__step__transposed__type.html"> 51</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1dynamic__xy__step__transposed__type.html">dynamic_xy_step_transposed_type</a></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  : <a class="code" href="structboost_1_1gil_1_1dynamic__xy__step__type.html">dynamic_xy_step_type</a><typename transposed_type<View>::type> {};</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword">typename</span> <a class="code" href="classboost_1_1gil_1_1image__view.html">type_from_x_iterator<Iterator>::view_t</a></div><div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="group___image_view_constructors.html#gad50e29fb9bf8b22f010fbeb1a9e85a1f"> 58</a></span> <a class="code" href="group___image_view_constructors.html#gaa66973da554475f3c8ac4087e97f7fa9">interleaved_view</a>(std::size_t width, std::size_t height,</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  Iterator pixels, std::ptrdiff_t rowsize_in_bytes) {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> <a class="code" href="classboost_1_1gil_1_1image__view.html">type_from_x_iterator<Iterator>::view_t</a>;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> RView(width, height, <span class="keyword">typename</span> RView::locator(pixels, rowsize_in_bytes));</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="group___image_view_constructors.html#gaa66973da554475f3c8ac4087e97f7fa9"> 67</a></span> <span class="keyword">auto</span> <a class="code" href="group___image_view_constructors.html#gaa66973da554475f3c8ac4087e97f7fa9">interleaved_view</a>(<a class="code" href="classboost_1_1gil_1_1point.html">point<std::size_t></a> dim, Iterator pixels,</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  std::ptrdiff_t rowsize_in_bytes)</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  -> <span class="keyword">typename</span> <a class="code" href="classboost_1_1gil_1_1image__view.html">type_from_x_iterator<Iterator>::view_t</a></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> {</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> <a class="code" href="classboost_1_1gil_1_1image__view.html">type_from_x_iterator<Iterator>::view_t</a>;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> RView(dim, <span class="keyword">typename</span> RView::locator(pixels, rowsize_in_bytes));</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment">// interleaved_view_get_raw_data, planar_view_get_raw_data - return pointers to the raw data (the channels) of a basic homogeneous view.</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"></span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View, <span class="keywordtype">bool</span> IsMutable> <span class="keyword">struct </span>channel_pointer_type_impl;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View> <span class="keyword">struct </span>channel_pointer_type_impl<View, true> {</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> channel_type<View>::type *;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  };</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View> <span class="keyword">struct </span>channel_pointer_type_impl<View, false> {</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">using</span> type = <span class="keyword">const</span> <span class="keyword">typename</span> channel_type<View>::type *;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  };</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View> <span class="keyword">struct </span>channel_pointer_type</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  : <span class="keyword">public</span> channel_pointer_type_impl<View, view_is_mutable<View>::value> {};</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">template</span> <<span class="keyword">typename</span> HomogeneousView></div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="group___image_view_constructors.html#ga307c961cfbf5f56d3ab634d89d1ebf57"> 96</a></span> <span class="keyword">typename</span> detail::channel_pointer_type<HomogeneousView>::type <a class="code" href="group___image_view_constructors.html#ga307c961cfbf5f56d3ab634d89d1ebf57">interleaved_view_get_raw_data</a>(<span class="keyword">const</span> HomogeneousView& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>) {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  static_assert(!is_planar<HomogeneousView>::value && <a class="code" href="structboost_1_1gil_1_1view__is__basic.html">view_is_basic<HomogeneousView>::value</a>, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  static_assert(std::is_pointer<typename HomogeneousView::x_iterator>::value, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">return</span> &gil::at_c<0>(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>(0,0));</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> }</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">template</span> <<span class="keyword">typename</span> HomogeneousView></div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="group___image_view_constructors.html#gac0fe3f405534dd13886583e99dd5ba38"> 106</a></span> <span class="keyword">typename</span> detail::channel_pointer_type<HomogeneousView>::type <a class="code" href="group___image_view_constructors.html#gac0fe3f405534dd13886583e99dd5ba38">planar_view_get_raw_data</a>(<span class="keyword">const</span> HomogeneousView& <a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>, <span class="keywordtype">int</span> plane_index) {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  static_assert(is_planar<HomogeneousView>::value && <a class="code" href="structboost_1_1gil_1_1view__is__basic.html">view_is_basic<HomogeneousView>::value</a>, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">return</span> dynamic_at_c(<a class="code" href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">view</a>.row_begin(0),plane_index);</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> }</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">template</span> <<span class="keyword">typename</span> SrcConstRefP, <span class="keyword">typename</span> DstP, <span class="keyword">typename</span> CC=default_color_converter > <span class="comment">// const_reference to the source pixel and destination pixel value</span></div><div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1color__convert__deref__fn.html"> 121</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1color__convert__deref__fn.html">color_convert_deref_fn</a> : <span class="keyword">public</span> <a class="code" href="structboost_1_1gil_1_1deref__base.html">deref_base</a><color_convert_deref_fn<SrcConstRefP,DstP,CC>, DstP, DstP, const DstP&, SrcConstRefP, DstP, false> {</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  CC _cc; <span class="comment">// color-converter</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="classboost_1_1gil_1_1color__convert__deref__fn.html">color_convert_deref_fn</a>() {}</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="code" href="classboost_1_1gil_1_1color__convert__deref__fn.html">color_convert_deref_fn</a>(CC cc_in) : _cc(cc_in) {}</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  DstP operator()(SrcConstRefP srcP)<span class="keyword"> const </span>{</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  DstP dstP;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  _cc(srcP,dstP);</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> dstP;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> };</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="comment">// Add color converter upon dereferencing</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> SrcView, <span class="keyword">typename</span> CC, <span class="keyword">typename</span> DstP, <span class="keyword">typename</span> SrcP></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keyword">struct </span>_color_converted_view_type {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keyword">using</span> deref_t = <a class="code" href="classboost_1_1gil_1_1color__convert__deref__fn.html">color_convert_deref_fn<typename SrcView::const_t::reference,DstP,CC></a>;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">using</span> add_ref_t = <span class="keyword">typename</span> SrcView::template add_deref<deref_t>;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> add_ref_t::type;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> SrcView& sv,CC cc) {<span class="keywordflow">return</span> add_ref_t::make(sv,deref_t(cc));}</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  };</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// If the Src view has the same pixel type as the target, there is no need for color conversion</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> SrcView, <span class="keyword">typename</span> CC, <span class="keyword">typename</span> DstP></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">struct </span>_color_converted_view_type<SrcView,CC,DstP,DstP> {</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">using</span> type = SrcView;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> SrcView& sv,CC) {<span class="keywordflow">return</span> sv;}</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  };</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">template</span> <<span class="keyword">typename</span> SrcView, <span class="keyword">typename</span> DstP, <span class="keyword">typename</span> CC=default_color_converter></div><div class="line"><a name="l00159"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1color__converted__view__type.html"> 159</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1color__converted__view__type.html">color_converted_view_type</a> : <span class="keyword">public</span> detail::_color_converted_view_type<SrcView,</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  CC,</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  DstP,</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  typename SrcView::value_type> {</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  GIL_CLASS_REQUIRE(DstP, boost::gil, <a class="code" href="structboost_1_1gil_1_1_mutable_pixel_concept.html">MutablePixelConcept</a>)<span class="comment">//why does it have to be mutable???</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> };</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">template</span> <<span class="keyword">typename</span> DstP, <span class="keyword">typename</span> View, <span class="keyword">typename</span> CC></div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="group___image_view_transformations_color_convert.html#ga2c24e88ebb257b08f661f3f3fb71caa1"> 170</a></span> <span class="keyword">inline</span> <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1color__converted__view__type.html">color_converted_view_type<View,DstP,CC>::type</a> <a class="code" href="group___image_view_transformations_color_convert.html#ga6c421b40d2e890444c8687123e286e41">color_converted_view</a>(<span class="keyword">const</span> View& src,CC cc) {</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">return</span> <a class="code" href="structboost_1_1gil_1_1color__converted__view__type.html">color_converted_view_type<View,DstP,CC>::make</a>(src,cc);</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="keyword">template</span> <<span class="keyword">typename</span> DstP, <span class="keyword">typename</span> View></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">inline</span> <span class="keyword">typename</span> color_converted_view_type<View,DstP>::type</div><div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="group___image_view_transformations_color_convert.html#ga6c421b40d2e890444c8687123e286e41"> 178</a></span> <a class="code" href="group___image_view_transformations_color_convert.html#ga6c421b40d2e890444c8687123e286e41">color_converted_view</a>(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> color_converted_view<DstP>(src,<a class="code" href="structboost_1_1gil_1_1default__color__converter.html">default_color_converter</a>());</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> }</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> </div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="keyword">inline</span> <span class="keyword">typename</span> dynamic_y_step_type<View>::type flipped_up_down_view(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> dynamic_y_step_type<View>::type;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> RView(src.dimensions(),<span class="keyword">typename</span> RView::xy_locator(src.xy_at(0,src.height()-1),-1));</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="keyword">inline</span> <span class="keyword">typename</span> dynamic_x_step_type<View>::type flipped_left_right_view(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> dynamic_x_step_type<View>::type;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> RView(src.dimensions(),<span class="keyword">typename</span> RView::xy_locator(src.xy_at(src.width()-1,0),-1,1));</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> }</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">inline</span> <span class="keyword">typename</span> dynamic_xy_step_transposed_type<View>::type transposed_view(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> dynamic_xy_step_transposed_type<View>::type;</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> RView(src.height(),src.width(),<span class="keyword">typename</span> RView::xy_locator(src.xy_at(0,0),1,1,<span class="keyword">true</span>));</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> }</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> </div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">inline</span> <span class="keyword">typename</span> dynamic_xy_step_transposed_type<View>::type rotated90cw_view(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> dynamic_xy_step_transposed_type<View>::type;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">return</span> RView(src.height(),src.width(),<span class="keyword">typename</span> RView::xy_locator(src.xy_at(0,src.height()-1),-1,1,<span class="keyword">true</span>));</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> }</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">inline</span> <span class="keyword">typename</span> dynamic_xy_step_transposed_type<View>::type rotated90ccw_view(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> dynamic_xy_step_transposed_type<View>::type;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">return</span> RView(src.height(),src.width(),<span class="keyword">typename</span> RView::xy_locator(src.xy_at(src.width()-1,0),1,-1,<span class="keyword">true</span>));</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> }</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span> </div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">inline</span> <span class="keyword">typename</span> dynamic_xy_step_type<View>::type rotated180_view(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">using</span> RView = <span class="keyword">typename</span> dynamic_xy_step_type<View>::type;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">return</span> RView(src.dimensions(),<span class="keyword">typename</span> RView::xy_locator(src.xy_at(src.width()-1,src.height()-1),-1,-1));</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> }</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> <span class="keyword">inline</span> View subimage_view(</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  View <span class="keyword">const</span>& src,</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keyword">typename</span> View::point_t <span class="keyword">const</span>& topleft,</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keyword">typename</span> View::point_t <span class="keyword">const</span>& dimensions)</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> {</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">return</span> View(dimensions, src.xy_at(topleft));</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> }</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="keyword">inline</span> View subimage_view(View <span class="keyword">const</span>& src,</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keyword">typename</span> View::coord_t x_min,</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keyword">typename</span> View::coord_t y_min,</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">typename</span> View::coord_t width,</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keyword">typename</span> View::coord_t height)</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> {</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> View(width, height, src.xy_at(x_min, y_min));</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="keyword">inline</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="keyword">auto</span> subsampled_view(View <span class="keyword">const</span>& src, <span class="keyword">typename</span> View::coord_t x_step, <span class="keyword">typename</span> View::coord_t y_step)</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  -> <span class="keyword">typename</span> dynamic_xy_step_type<View>::type</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> {</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  BOOST_ASSERT(x_step > 0 && y_step > 0);</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keyword">using</span> view_t =<span class="keyword">typename</span> dynamic_xy_step_type<View>::type;</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> view_t(</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  (src.width() + (x_step - 1)) / x_step,</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  (src.height() + (y_step - 1)) / y_step,</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keyword">typename</span> view_t::xy_locator(src.xy_at(0,0), x_step, y_step));</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="keyword">inline</span> <span class="keyword">auto</span> subsampled_view(View <span class="keyword">const</span>& src, <span class="keyword">typename</span> View::point_t <span class="keyword">const</span>& step)</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  -> <span class="keyword">typename</span> dynamic_xy_step_type<View>::type</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> {</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> subsampled_view(src, step.x, step.y);</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> }</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View, <span class="keywordtype">bool</span> AreChannelsTogether> <span class="keyword">struct </span>__nth_channel_view_basic;</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <span class="comment">// nth_channel_view when the channels are not adjacent in memory. This can happen for multi-channel interleaved images</span></div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// or images with a step</span></div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keyword">struct </span>__nth_channel_view_basic<View,false> {</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> view_type<typename channel_type<View>::type, gray_layout_t, <span class="keyword">false</span>, <span class="keyword">true</span>, view_is_mutable<View>::value>::type;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src, <span class="keywordtype">int</span> n) {</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keyword">using</span> locator_t = <span class="keyword">typename</span> type::xy_locator;</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keyword">using</span> x_iterator_t = <span class="keyword">typename</span> type::x_iterator;</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keyword">using</span> x_iterator_base_t = <span class="keyword">typename</span> iterator_adaptor_get_base<x_iterator_t>::type;</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  x_iterator_t sit(x_iterator_base_t(&(src(0,0)[n])),src.pixels().pixel_size());</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">return</span> type(src.dimensions(),locator_t(sit, src.pixels().row_size()));</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  }</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  };</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="comment">// nth_channel_view when the channels are together in memory (true for simple grayscale or planar images)</span></div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keyword">struct </span>__nth_channel_view_basic<View,true> {</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> view_type<typename channel_type<View>::type, gray_layout_t, <span class="keyword">false</span>, <span class="keyword">false</span>, view_is_mutable<View>::value>::type;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src, <span class="keywordtype">int</span> n) {</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">using</span> x_iterator_t = <span class="keyword">typename</span> type::x_iterator;</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">return</span> <a class="code" href="group___image_view_constructors.html#gaa66973da554475f3c8ac4087e97f7fa9">interleaved_view</a>(src.width(),src.height(),(x_iterator_t)&(src(0,0)[n]), src.pixels().row_size());</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  };</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> </div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View, <span class="keywordtype">bool</span> IsBasic> <span class="keyword">struct </span>__nth_channel_view;</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> </div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// For basic (memory-based) views dispatch to __nth_channel_view_basic</span></div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">struct </span>__nth_channel_view<View,true></div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  {</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keyword">using</span> src_x_iterator = <span class="keyword">typename</span> View::x_iterator;</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="comment">// Determines whether the channels of a given pixel iterator are adjacent in memory.</span></div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="comment">// Planar and grayscale iterators have channels adjacent in memory, whereas multi-channel interleaved and iterators with non-fundamental step do not.</span></div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> adjacent =</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  !iterator_is_step<src_x_iterator>::value &&</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  (is_planar<src_x_iterator>::value || num_channels<View>::value == 1);</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> __nth_channel_view_basic<View,adjacent>::type;</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src, <span class="keywordtype">int</span> n) {</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">return</span> __nth_channel_view_basic<View,adjacent>::make(src,n);</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  }</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  };</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> SrcP> <span class="comment">// SrcP is a reference to PixelConcept (could be pixel value or const/non-const reference)</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// Examples: pixel<T,L>, pixel<T,L>&, const pixel<T,L>&, planar_pixel_reference<T&,L>, planar_pixel_reference<const T&,L></span></div><div class="line"><a name="l00360"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html"> 360</a></span>  <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">nth_channel_deref_fn</a></div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  {</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_mutable =</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <a class="code" href="structboost_1_1gil_1_1pixel__is__reference.html">pixel_is_reference<SrcP>::value</a> && <a class="code" href="structboost_1_1gil_1_1pixel__reference__is__mutable.html">pixel_reference_is_mutable<SrcP>::value</a>;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keyword">using</span> src_pixel_t = <span class="keyword">typename</span> std::remove_reference<SrcP>::type;</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">using</span> channel_t = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1channel__type.html">channel_type<src_pixel_t>::type</a>;</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keyword">using</span> const_ref_t = <span class="keyword">typename</span> src_pixel_t::const_reference;</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keyword">using</span> ref_t = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1pixel__reference__type.html">pixel_reference_type<channel_t,gray_layout_t,false,is_mutable>::type</a>;</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keyword">using</span> <a class="code" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">const_t</a> = <a class="code" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">nth_channel_deref_fn<const_ref_t></a>;</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keyword">using</span> value_type = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1pixel.html">pixel_value_type<channel_t,gray_layout_t>::type</a>;</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keyword">using</span> const_reference = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1pixel__reference__type.html">pixel_reference_type<channel_t,gray_layout_t,false,false>::type</a>;</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  <span class="keyword">using</span> argument_type = SrcP;</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  <span class="keyword">using</span> reference = mp11::mp_if_c<is_mutable, ref_t, value_type>;</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keyword">using</span> result_type = reference;</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <a class="code" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">nth_channel_deref_fn</a>(<span class="keywordtype">int</span> n=0) : _n(n) {}</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> P> <a class="code" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">nth_channel_deref_fn</a>(<span class="keyword">const</span> <a class="code" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">nth_channel_deref_fn<P></a>& d) : _n(d._n) {}</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordtype">int</span> _n; <span class="comment">// the channel to use</span></div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> </div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  result_type operator()(argument_type srcP)<span class="keyword"> const </span>{</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">return</span> result_type(srcP[_n]);</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  };</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> View> <span class="keyword">struct </span>__nth_channel_view<View,false> {</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keyword">using</span> deref_t = <a class="code" href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">nth_channel_deref_fn<typename View::reference></a>;</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keyword">using</span> AD = <span class="keyword">typename</span> View::template add_deref<deref_t>;</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> AD::type;</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src, <span class="keywordtype">int</span> n) {</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">return</span> AD::make(src, deref_t(n));</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  }</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  };</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00406"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1nth__channel__view__type.html"> 406</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1nth__channel__view__type.html">nth_channel_view_type</a> {</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  GIL_CLASS_REQUIRE(View, boost::gil, <a class="code" href="structboost_1_1gil_1_1_image_view_concept.html">ImageViewConcept</a>)</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keyword">using</span> VB = detail::__nth_channel_view<View,view_is_basic<View>::value>;</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> VB::type;</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src, <span class="keywordtype">int</span> n) { <span class="keywordflow">return</span> VB::make(src,n); }</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> };</div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span> </div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span> </div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span> <span class="keyword">template</span> <<span class="keyword">typename</span> View></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="keyword">typename</span> nth_channel_view_type<View>::type nth_channel_view(<span class="keyword">const</span> View& src, <span class="keywordtype">int</span> n) {</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">return</span> <a class="code" href="structboost_1_1gil_1_1nth__channel__view__type.html">nth_channel_view_type<View>::make</a>(src,n);</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span> }</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> </div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span> </div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span> </div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span> </div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span> </div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span> </div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span> </div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View, <span class="keywordtype">bool</span> AreChannelsTogether> <span class="keyword">struct </span>__kth_channel_view_basic;</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span> </div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="comment">// kth_channel_view when the channels are not adjacent in memory. This can happen for multi-channel interleaved images</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="comment">// or images with a step</span></div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View></div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="keyword">struct </span>__kth_channel_view_basic<K,View,false> {</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keyword">using</span> channel_t = <span class="keyword">typename</span> kth_element_type<typename View::value_type,K>::type;</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> view_type<channel_t, gray_layout_t, false, true, view_is_mutable<View>::value>::type;</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span> </div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="keyword">using</span> locator_t = <span class="keyword">typename</span> type::xy_locator;</div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keyword">using</span> x_iterator_t = <span class="keyword">typename</span> type::x_iterator;</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keyword">using</span> x_iterator_base_t = <span class="keyword">typename</span> iterator_adaptor_get_base<x_iterator_t>::type;</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  x_iterator_t sit(x_iterator_base_t(&gil::at_c<K>(src(0,0))),src.pixels().pixel_size());</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keywordflow">return</span> type(src.dimensions(),locator_t(sit, src.pixels().row_size()));</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  }</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  };</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span> </div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">// kth_channel_view when the channels are together in memory (true for simple grayscale or planar images)</span></div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="keyword">struct </span>__kth_channel_view_basic<K,View,true> {</div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keyword">using</span> channel_t = <span class="keyword">typename</span> kth_element_type<typename View::value_type, K>::type;</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> view_type<channel_t, gray_layout_t, false, false, view_is_mutable<View>::value>::type;</div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keyword">using</span> x_iterator_t = <span class="keyword">typename</span> type::x_iterator;</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keywordflow">return</span> <a class="code" href="group___image_view_constructors.html#gaa66973da554475f3c8ac4087e97f7fa9">interleaved_view</a>(src.width(),src.height(),(x_iterator_t)&gil::at_c<K>(src(0,0)), src.pixels().row_size());</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  }</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  };</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View, <span class="keywordtype">bool</span> IsBasic> <span class="keyword">struct </span>__kth_channel_view;</div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span> </div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="comment">// For basic (memory-based) views dispatch to __kth_channel_view_basic</span></div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View> <span class="keyword">struct </span>__kth_channel_view<K,View,true></div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  {</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keyword">using</span> src_x_iterator = <span class="keyword">typename</span> View::x_iterator;</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span> </div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="comment">// Determines whether the channels of a given pixel iterator are adjacent in memory.</span></div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="comment">// Planar and grayscale iterators have channels adjacent in memory, whereas multi-channel interleaved and iterators with non-fundamental step do not.</span></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> adjacent =</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  !iterator_is_step<src_x_iterator>::value &&</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  (is_planar<src_x_iterator>::value || num_channels<View>::value == 1);</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span> </div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> __kth_channel_view_basic<K,View,adjacent>::type;</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keywordflow">return</span> __kth_channel_view_basic<K,View,adjacent>::make(src);</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  }</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  };</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> </div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> SrcP></div><div class="line"><a name="l00495"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html"> 495</a></span>  <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">kth_channel_deref_fn</a></div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  {</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keyword">static</span> constexpr <span class="keywordtype">bool</span> is_mutable =</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <a class="code" href="structboost_1_1gil_1_1pixel__is__reference.html">pixel_is_reference<SrcP>::value</a> && <a class="code" href="structboost_1_1gil_1_1pixel__reference__is__mutable.html">pixel_reference_is_mutable<SrcP>::value</a>;</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span> </div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keyword">using</span> src_pixel_t = <span class="keyword">typename</span> std::remove_reference<SrcP>::type;</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keyword">using</span> channel_t = <span class="keyword">typename</span> kth_element_type<src_pixel_t, K>::type;</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="keyword">using</span> const_ref_t = <span class="keyword">typename</span> src_pixel_t::const_reference;</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keyword">using</span> ref_t = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1pixel__reference__type.html">pixel_reference_type<channel_t,gray_layout_t,false,is_mutable>::type</a>;</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> </div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keyword">using</span> <a class="code" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">const_t</a> = <a class="code" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">kth_channel_deref_fn<K,const_ref_t></a>;</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keyword">using</span> value_type = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1pixel.html">pixel_value_type<channel_t,gray_layout_t>::type</a>;</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keyword">using</span> const_reference = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1pixel__reference__type.html">pixel_reference_type<channel_t,gray_layout_t,false,false>::type</a>;</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keyword">using</span> argument_type = SrcP;</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keyword">using</span> reference = mp11::mp_if_c<is_mutable, ref_t, value_type>;</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keyword">using</span> result_type = reference;</div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span> </div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <a class="code" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">kth_channel_deref_fn</a>() {}</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> P> <a class="code" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">kth_channel_deref_fn</a>(<span class="keyword">const</span> <a class="code" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">kth_channel_deref_fn<K,P></a>&) {}</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> </div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  result_type operator()(argument_type srcP)<span class="keyword"> const </span>{</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">return</span> result_type(gil::at_c<K>(srcP));</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  }</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  };</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span> </div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View> <span class="keyword">struct </span>__kth_channel_view<K,View,false> {</div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keyword">using</span> deref_t = <a class="code" href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">kth_channel_deref_fn<K,typename View::reference></a>;</div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keyword">using</span> AD = <span class="keyword">typename</span> View::template add_deref<deref_t>;</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> AD::type;</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">return</span> AD::make(src, deref_t());</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  }</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  };</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span> </div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span> <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View></div><div class="line"><a name="l00541"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1kth__channel__view__type.html"> 541</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1kth__channel__view__type.html">kth_channel_view_type</a> {</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  GIL_CLASS_REQUIRE(View, boost::gil, <a class="code" href="structboost_1_1gil_1_1_image_view_concept.html">ImageViewConcept</a>)</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="keyword">using</span> VB = detail::__kth_channel_view<K,View,view_is_basic<View>::value>;</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keyword">using</span> type = <span class="keyword">typename</span> VB::type;</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> View& src) { <span class="keywordflow">return</span> VB::make(src); }</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> };</div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span> </div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="keyword">template</span> <<span class="keywordtype">int</span> K, <span class="keyword">typename</span> View></div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="keyword">typename</span> kth_channel_view_type<K,View>::type kth_channel_view(<span class="keyword">const</span> View& src) {</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keywordflow">return</span> <a class="code" href="structboost_1_1gil_1_1kth__channel__view__type.html">kth_channel_view_type<K,View>::make</a>(src);</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span> }</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span> </div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span> } } <span class="comment">// namespace boost::gil</span></div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span> </div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structboost_1_1gil_1_1dynamic__xy__step__transposed__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1dynamic__xy__step__transposed__type.html">boost::gil::dynamic_xy_step_transposed_type</a></div><div class="ttdoc">Returns the type of a transposed view that has a dynamic step along both X and Y.</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:51</div></div>
51 <div class="ttc" id="classboost_1_1gil_1_1image__view_html"><div class="ttname"><a href="classboost_1_1gil_1_1image__view.html">boost::gil::image_view</a></div><div class="ttdoc">A lightweight object that interprets memory as a 2D array of pixels. Models ImageViewConcept,...</div><div class="ttdef"><b>Definition:</b> image_view.hpp:53</div></div>
52 <div class="ttc" id="structboost_1_1gil_1_1pixel_html"><div class="ttname"><a href="structboost_1_1gil_1_1pixel.html">boost::gil::pixel</a></div><div class="ttdoc">Represents a pixel value (a container of channels). Models: HomogeneousColorBaseValueConcept,...</div><div class="ttdef"><b>Definition:</b> metafunctions.hpp:23</div></div>
53 <div class="ttc" id="classboost_1_1gil_1_1color__convert__deref__fn_html"><div class="ttname"><a href="classboost_1_1gil_1_1color__convert__deref__fn.html">boost::gil::color_convert_deref_fn</a></div><div class="ttdoc">Function object that given a source pixel, returns it converted to a given color space and channel de...</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:121</div></div>
54 <div class="ttc" id="structboost_1_1gil_1_1dynamic__xy__step__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1dynamic__xy__step__type.html">boost::gil::dynamic_xy_step_type</a></div><div class="ttdoc">Returns the type of a view that has a dynamic step along both X and Y.</div><div class="ttdef"><b>Definition:</b> dynamic_step.hpp:27</div></div>
55 <div class="ttc" id="structboost_1_1gil_1_1nth__channel__view__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1nth__channel__view__type.html">boost::gil::nth_channel_view_type</a></div><div class="ttdoc">Given a source image view type View, returns the type of an image view over a single channel of ViewI...</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:406</div></div>
56 <div class="ttc" id="structboost_1_1gil_1_1deref__base_html"><div class="ttname"><a href="structboost_1_1gil_1_1deref__base.html">boost::gil::deref_base</a></div><div class="ttdoc">Helper base class for pixel dereference adaptors.</div><div class="ttdef"><b>Definition:</b> utilities.hpp:106</div></div>
57 <div class="ttc" id="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1kth__channel__deref__fn.html">boost::gil::detail::kth_channel_deref_fn</a></div><div class="ttdoc">Function object that returns a grayscale reference of the K-th channel (specified as a template param...</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:495</div></div>
58 <div class="ttc" id="structboost_1_1gil_1_1color__converted__view__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1color__converted__view__type.html">boost::gil::color_converted_view_type</a></div><div class="ttdoc">Returns the type of a view that does color conversion upon dereferencing its pixels.</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:159</div></div>
59 <div class="ttc" id="structboost_1_1gil_1_1pixel__reference__is__mutable_html"><div class="ttname"><a href="structboost_1_1gil_1_1pixel__reference__is__mutable.html">boost::gil::pixel_reference_is_mutable</a></div><div class="ttdoc">Determines if the given pixel reference is mutable (i.e. its channels can be changed)</div><div class="ttdef"><b>Definition:</b> metafunctions.hpp:228</div></div>
60 <div class="ttc" id="structboost_1_1gil_1_1transposed__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1transposed__type.html">boost::gil::transposed_type</a></div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:40</div></div>
61 <div class="ttc" id="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1nth__channel__deref__fn.html">boost::gil::detail::nth_channel_deref_fn</a></div><div class="ttdoc">Function object that returns a grayscale reference of the N-th channel of a given reference....</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:360</div></div>
62 <div class="ttc" id="group___image_view_constructors_html_gac0fe3f405534dd13886583e99dd5ba38"><div class="ttname"><a href="group___image_view_constructors.html#gac0fe3f405534dd13886583e99dd5ba38">boost::gil::planar_view_get_raw_data</a></div><div class="ttdeci">detail::channel_pointer_type< HomogeneousView >::type planar_view_get_raw_data(const HomogeneousView &view, int plane_index)</div><div class="ttdoc">Returns C pointer to the the channels of a given color plane of a planar homogeneous view.</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:106</div></div>
63 <div class="ttc" id="group___image_view_constructors_html_gaa66973da554475f3c8ac4087e97f7fa9"><div class="ttname"><a href="group___image_view_constructors.html#gaa66973da554475f3c8ac4087e97f7fa9">boost::gil::interleaved_view</a></div><div class="ttdeci">auto interleaved_view(point< std::size_t > dim, Iterator pixels, std::ptrdiff_t rowsize_in_bytes) -> typename type_from_x_iterator< Iterator >::view_t</div><div class="ttdoc">Constructing image views from raw interleaved pixel data.</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:67</div></div>
64 <div class="ttc" id="structboost_1_1gil_1_1_mutable_pixel_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_mutable_pixel_concept.html">boost::gil::MutablePixelConcept</a></div><div class="ttdoc">Pixel concept that allows for changing its channels.</div><div class="ttdef"><b>Definition:</b> concepts/pixel.hpp:100</div></div>
65 <div class="ttc" id="structboost_1_1gil_1_1pixel__reference__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1pixel__reference__type.html">boost::gil::pixel_reference_type</a></div><div class="ttdoc">Returns the type of a homogeneous pixel reference given the channel type, layout, whether it operates...</div><div class="ttdef"><b>Definition:</b> metafunctions.hpp:266</div></div>
66 <div class="ttc" id="structboost_1_1gil_1_1dynamic__y__step__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1dynamic__y__step__type.html">boost::gil::dynamic_y_step_type</a></div><div class="ttdoc">Base template for types that model HasDynamicYStepTypeConcept.</div><div class="ttdef"><b>Definition:</b> dynamic_step.hpp:21</div></div>
67 <div class="ttc" id="group___image_view_constructors_html_ga307c961cfbf5f56d3ab634d89d1ebf57"><div class="ttname"><a href="group___image_view_constructors.html#ga307c961cfbf5f56d3ab634d89d1ebf57">boost::gil::interleaved_view_get_raw_data</a></div><div class="ttdeci">detail::channel_pointer_type< HomogeneousView >::type interleaved_view_get_raw_data(const HomogeneousView &view)</div><div class="ttdoc">Returns C pointer to the the channels of an interleaved homogeneous view.</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:96</div></div>
68 <div class="ttc" id="structboost_1_1gil_1_1channel__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1channel__type.html">boost::gil::channel_type</a></div><div class="ttdef"><b>Definition:</b> color_convert.hpp:31</div></div>
69 <div class="ttc" id="structboost_1_1gil_1_1_image_view_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_image_view_concept.html">boost::gil::ImageViewConcept</a></div><div class="ttdoc">GIL's 2-dimensional view over immutable GIL pixels.</div><div class="ttdef"><b>Definition:</b> concepts/image_view.hpp:374</div></div>
70 <div class="ttc" id="group___image_model_html_ga633557dbbff2d21c784b73412b47bb38"><div class="ttname"><a href="group___image_model.html#ga633557dbbff2d21c784b73412b47bb38">boost::gil::view</a></div><div class="ttdeci">const image< Pixel, IsPlanar, Alloc >::view_t & view(image< Pixel, IsPlanar, Alloc > &img)</div><div class="ttdoc">Returns the non-constant-pixel view of an image.</div><div class="ttdef"><b>Definition:</b> image.hpp:443</div></div>
71 <div class="ttc" id="group___image_view_transformations_color_convert_html_ga6c421b40d2e890444c8687123e286e41"><div class="ttname"><a href="group___image_view_transformations_color_convert.html#ga6c421b40d2e890444c8687123e286e41">boost::gil::color_converted_view</a></div><div class="ttdeci">color_converted_view_type< View, DstP >::type color_converted_view(const View &src)</div><div class="ttdoc">overload of generic color_converted_view with the default color-converter</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:178</div></div>
72 <div class="ttc" id="structboost_1_1gil_1_1pixel__is__reference_html"><div class="ttname"><a href="structboost_1_1gil_1_1pixel__is__reference.html">boost::gil::pixel_is_reference</a></div><div class="ttdoc">Given a model of a pixel, determines whether the model represents a pixel reference (as opposed to pi...</div><div class="ttdef"><b>Definition:</b> metafunctions.hpp:216</div></div>
73 <div class="ttc" id="structboost_1_1gil_1_1default__color__converter_html"><div class="ttname"><a href="structboost_1_1gil_1_1default__color__converter.html">boost::gil::default_color_converter</a></div><div class="ttdoc">class for color-converting one pixel to another</div><div class="ttdef"><b>Definition:</b> color_convert.hpp:290</div></div>
74 <div class="ttc" id="structboost_1_1gil_1_1view__is__basic_html"><div class="ttname"><a href="structboost_1_1gil_1_1view__is__basic.html">boost::gil::view_is_basic</a></div><div class="ttdoc">Basic views must be over basic locators.</div><div class="ttdef"><b>Definition:</b> metafunctions.hpp:129</div></div>
75 <div class="ttc" id="structboost_1_1gil_1_1kth__channel__view__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1kth__channel__view__type.html">boost::gil::kth_channel_view_type</a></div><div class="ttdoc">Given a source image view type View, returns the type of an image view over a given channel of View....</div><div class="ttdef"><b>Definition:</b> image_view_factory.hpp:541</div></div>
76 <div class="ttc" id="classboost_1_1gil_1_1point_html"><div class="ttname"><a href="classboost_1_1gil_1_1point.html">boost::gil::point</a></div><div class="ttdoc">2D point both axes of which have the same dimension typeModels: Point2DConcept</div><div class="ttdef"><b>Definition:</b> locator.hpp:28</div></div>
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