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118 <div class="title">non_linear_filter3x3.cl File Reference</div> </div>
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121 <div class="textblock"><code>#include "<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>"</code><br />
122 <code>#include "<a class="el" href="non__linear__filter__helpers_8h_source.xhtml">non_linear_filter_helpers.h</a>"</code><br />
124 <p><a href="non__linear__filter3x3_8cl_source.xhtml">Go to the source code of this file.</a></p>
125 <table class="memberdecls">
126 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
127 Functions</h2></td></tr>
128 <tr class="memitem:ac1fc5f0f6bac8d062852df0530d3c0cb"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="non__linear__filter3x3_8cl.xhtml#ac1fc5f0f6bac8d062852df0530d3c0cb">non_linear_filter_box3x3</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)</td></tr>
129 <tr class="memdesc:ac1fc5f0f6bac8d062852df0530d3c0cb"><td class="mdescLeft"> </td><td class="mdescRight">This function applies a non linear filter on a 3x3 box basis on an input image. <a href="#ac1fc5f0f6bac8d062852df0530d3c0cb">More...</a><br /></td></tr>
130 <tr class="separator:ac1fc5f0f6bac8d062852df0530d3c0cb"><td class="memSeparator" colspan="2"> </td></tr>
131 <tr class="memitem:a69c356d968b2ecefbf2aa06e0ac83e28"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="non__linear__filter3x3_8cl.xhtml#a69c356d968b2ecefbf2aa06e0ac83e28">non_linear_filter_cross3x3</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)</td></tr>
132 <tr class="memdesc:a69c356d968b2ecefbf2aa06e0ac83e28"><td class="mdescLeft"> </td><td class="mdescRight">This function applies a non linear filter on a 3x3 cross basis on an input image. <a href="#a69c356d968b2ecefbf2aa06e0ac83e28">More...</a><br /></td></tr>
133 <tr class="separator:a69c356d968b2ecefbf2aa06e0ac83e28"><td class="memSeparator" colspan="2"> </td></tr>
134 <tr class="memitem:a37f5aa2a4245f4b6b925640f73a77fdb"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="non__linear__filter3x3_8cl.xhtml#a37f5aa2a4245f4b6b925640f73a77fdb">non_linear_filter_disk3x3</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_stride_y, uint src_step_y, uint src_offset_first_element_in_bytes, __global uchar *dst_ptr, uint dst_stride_x, uint dst_step_x, uint dst_stride_y, uint dst_step_y, uint dst_offset_first_element_in_bytes)</td></tr>
135 <tr class="memdesc:a37f5aa2a4245f4b6b925640f73a77fdb"><td class="mdescLeft"> </td><td class="mdescRight">This function applies a non linear filter on a 3x3 disk basis on an input image. <a href="#a37f5aa2a4245f4b6b925640f73a77fdb">More...</a><br /></td></tr>
136 <tr class="separator:a37f5aa2a4245f4b6b925640f73a77fdb"><td class="memSeparator" colspan="2"> </td></tr>
138 <h2 class="groupheader">Function Documentation</h2>
139 <a class="anchor" id="ac1fc5f0f6bac8d062852df0530d3c0cb"></a>
140 <div class="memitem">
141 <div class="memproto">
142 <table class="memname">
144 <td class="memname">__kernel void non_linear_filter_box3x3 </td>
146 <td class="paramtype">__global uchar * </td>
147 <td class="paramname"><em>src_ptr</em>, </td>
150 <td class="paramkey"></td>
152 <td class="paramtype">uint </td>
153 <td class="paramname"><em>src_stride_x</em>, </td>
156 <td class="paramkey"></td>
158 <td class="paramtype">uint </td>
159 <td class="paramname"><em>src_step_x</em>, </td>
162 <td class="paramkey"></td>
164 <td class="paramtype">uint </td>
165 <td class="paramname"><em>src_stride_y</em>, </td>
168 <td class="paramkey"></td>
170 <td class="paramtype">uint </td>
171 <td class="paramname"><em>src_step_y</em>, </td>
174 <td class="paramkey"></td>
176 <td class="paramtype">uint </td>
177 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
180 <td class="paramkey"></td>
182 <td class="paramtype">__global uchar * </td>
183 <td class="paramname"><em>dst_ptr</em>, </td>
186 <td class="paramkey"></td>
188 <td class="paramtype">uint </td>
189 <td class="paramname"><em>dst_stride_x</em>, </td>
192 <td class="paramkey"></td>
194 <td class="paramtype">uint </td>
195 <td class="paramname"><em>dst_step_x</em>, </td>
198 <td class="paramkey"></td>
200 <td class="paramtype">uint </td>
201 <td class="paramname"><em>dst_stride_y</em>, </td>
204 <td class="paramkey"></td>
206 <td class="paramtype">uint </td>
207 <td class="paramname"><em>dst_step_y</em>, </td>
210 <td class="paramkey"></td>
212 <td class="paramtype">uint </td>
213 <td class="paramname"><em>dst_offset_first_element_in_bytes</em> </td>
221 </div><div class="memdoc">
223 <p>This function applies a non linear filter on a 3x3 box basis on an input image. </p>
224 <dl class="section note"><dt>Note</dt><dd>The needed filter operation is defined through the preprocessor by passing either -DMIN, -DMAX or -DMEDIAN.</dd></dl>
225 <dl class="params"><dt>Parameters</dt><dd>
226 <table class="params">
227 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
228 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
229 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
230 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
231 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
232 <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
233 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U8 </td></tr>
234 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
235 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
236 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
237 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
238 <tr><td class="paramdir">[in]</td><td class="paramname">dst_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
243 <p>Definition at line <a class="el" href="non__linear__filter3x3_8cl_source.xhtml#l00044">44</a> of file <a class="el" href="non__linear__filter3x3_8cl_source.xhtml">non_linear_filter3x3.cl</a>.</p>
245 <p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>, <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>, <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00120">row_reduce_max_3()</a>, <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00109">row_reduce_min_3()</a>, and <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00078">sort9()</a>.</p>
246 <div class="fragment"><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// Load values</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  uchar16 top = vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, -1));</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  uchar16 middle = vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, 0));</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  uchar16 bottom = vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, 1));</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// Apply respective filter</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#if defined MIN</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  uchar16 tmp = min(top, min(middle, bottom));</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  uchar8 out = <a class="code" href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a>(tmp);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#elif defined MAX</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  uchar16 tmp = max(top, max(middle, bottom));</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  uchar8 out = <a class="code" href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a>(tmp);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#elif defined MEDIAN</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  uchar8 p0 = top.s01234567;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  uchar8 p1 = top.s12345678;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  uchar8 p2 = top.s23456789;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  uchar8 p3 = middle.s01234567;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  uchar8 p4 = middle.s12345678;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  uchar8 p5 = middle.s23456789;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  uchar8 p6 = bottom.s01234567;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  uchar8 p7 = bottom.s12345678;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  uchar8 p8 = bottom.s23456789;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  uchar8 out = <a class="code" href="non__linear__filter__helpers_8h.xhtml#a0960df49e39a9499677066c32600c17f">sort9</a>(p0, p1, p2, p3, p4, p5, p6, p7, p8);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor">#error "Unsupported filter function"</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// Store result</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  vstore8(out, 0, dst.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</div><div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
247 <div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
248 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a3138dafa8474a59f73dd837073f18ed7"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a></div><div class="ttdeci">uchar8 row_reduce_max_3(uchar16 val)</div><div class="ttdoc">Calculate the maximum of a sliding window of size 3. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00120">non_linear_filter_helpers.h:120</a></div></div>
249 <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
250 <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00097">helpers.h:97</a></div></div>
251 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a0960df49e39a9499677066c32600c17f"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a0960df49e39a9499677066c32600c17f">sort9</a></div><div class="ttdeci">uchar8 sort9(uchar8 p0, uchar8 p1, uchar8 p2, uchar8 p3, uchar8 p4, uchar8 p5, uchar8 p6, uchar8 p7, uchar8 p8)</div><div class="ttdoc">Sorting network to sort 9 vectors of 8 elements and return their median. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00078">non_linear_filter_helpers.h:78</a></div></div>
252 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_ae3e09114bb887de4e20122eed42671a1"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a></div><div class="ttdeci">uchar8 row_reduce_min_3(uchar16 val)</div><div class="ttdoc">Calculate the minimum of a sliding window of size 3. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00109">non_linear_filter_helpers.h:109</a></div></div>
253 </div><!-- fragment -->
256 <a class="anchor" id="a69c356d968b2ecefbf2aa06e0ac83e28"></a>
257 <div class="memitem">
258 <div class="memproto">
259 <table class="memname">
261 <td class="memname">__kernel void non_linear_filter_cross3x3 </td>
263 <td class="paramtype">__global uchar * </td>
264 <td class="paramname"><em>src_ptr</em>, </td>
267 <td class="paramkey"></td>
269 <td class="paramtype">uint </td>
270 <td class="paramname"><em>src_stride_x</em>, </td>
273 <td class="paramkey"></td>
275 <td class="paramtype">uint </td>
276 <td class="paramname"><em>src_step_x</em>, </td>
279 <td class="paramkey"></td>
281 <td class="paramtype">uint </td>
282 <td class="paramname"><em>src_stride_y</em>, </td>
285 <td class="paramkey"></td>
287 <td class="paramtype">uint </td>
288 <td class="paramname"><em>src_step_y</em>, </td>
291 <td class="paramkey"></td>
293 <td class="paramtype">uint </td>
294 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
297 <td class="paramkey"></td>
299 <td class="paramtype">__global uchar * </td>
300 <td class="paramname"><em>dst_ptr</em>, </td>
303 <td class="paramkey"></td>
305 <td class="paramtype">uint </td>
306 <td class="paramname"><em>dst_stride_x</em>, </td>
309 <td class="paramkey"></td>
311 <td class="paramtype">uint </td>
312 <td class="paramname"><em>dst_step_x</em>, </td>
315 <td class="paramkey"></td>
317 <td class="paramtype">uint </td>
318 <td class="paramname"><em>dst_stride_y</em>, </td>
321 <td class="paramkey"></td>
323 <td class="paramtype">uint </td>
324 <td class="paramname"><em>dst_step_y</em>, </td>
327 <td class="paramkey"></td>
329 <td class="paramtype">uint </td>
330 <td class="paramname"><em>dst_offset_first_element_in_bytes</em> </td>
338 </div><div class="memdoc">
340 <p>This function applies a non linear filter on a 3x3 cross basis on an input image. </p>
341 <dl class="section note"><dt>Note</dt><dd>The needed filter operation is defined through the preprocessor by passing either -DMIN, -DMAX or -DMEDIAN.</dd></dl>
342 <dl class="params"><dt>Parameters</dt><dd>
343 <table class="params">
344 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
345 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
346 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
347 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
348 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
349 <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
350 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U8 </td></tr>
351 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
352 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
353 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
354 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
355 <tr><td class="paramdir">[in]</td><td class="paramname">dst_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
360 <p>Definition at line <a class="el" href="non__linear__filter3x3_8cl_source.xhtml#l00099">99</a> of file <a class="el" href="non__linear__filter3x3_8cl_source.xhtml">non_linear_filter3x3.cl</a>.</p>
362 <p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>, <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>, <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00120">row_reduce_max_3()</a>, <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00109">row_reduce_min_3()</a>, and <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00050">sort5()</a>.</p>
363 <div class="fragment"><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> {</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// Load values</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  uchar8 top = vload8(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, 0, -1));</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  uchar16 middle = vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, 0));</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  uchar8 bottom = vload8(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, 0, 1));</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>  <span class="comment">// Apply respective filter</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="preprocessor">#if defined MIN</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  uchar8 tmp_middle = <a class="code" href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a>(middle);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  uchar8 out = min(tmp_middle, min(top, bottom));</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="preprocessor">#elif defined MAX</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  uchar8 tmp_middle = <a class="code" href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a>(middle);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  uchar8 out = max(tmp_middle, max(top, bottom));</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="preprocessor">#elif defined MEDIAN</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  uchar8 p0 = top.s01234567;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  uchar8 p1 = middle.s01234567;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  uchar8 p2 = middle.s12345678;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  uchar8 p3 = middle.s23456789;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  uchar8 p4 = bottom.s01234567;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  uchar8 out = <a class="code" href="non__linear__filter__helpers_8h.xhtml#a7b5c174de888c3cfa7c08c16682fd770">sort5</a>(p0, p1, p2, p3, p4);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="preprocessor">#error "Unsupported filter function"</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="comment">// Store result</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  vstore8(out, 0, dst.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> }</div><div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
364 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a7b5c174de888c3cfa7c08c16682fd770"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a7b5c174de888c3cfa7c08c16682fd770">sort5</a></div><div class="ttdeci">uchar8 sort5(uchar8 p0, uchar8 p1, uchar8 p2, uchar8 p3, uchar8 p4)</div><div class="ttdoc">Sorting network to sort 5 vectors of 8 elements and return their median. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00050">non_linear_filter_helpers.h:50</a></div></div>
365 <div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
366 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a3138dafa8474a59f73dd837073f18ed7"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a></div><div class="ttdeci">uchar8 row_reduce_max_3(uchar16 val)</div><div class="ttdoc">Calculate the maximum of a sliding window of size 3. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00120">non_linear_filter_helpers.h:120</a></div></div>
367 <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
368 <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00097">helpers.h:97</a></div></div>
369 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_ae3e09114bb887de4e20122eed42671a1"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a></div><div class="ttdeci">uchar8 row_reduce_min_3(uchar16 val)</div><div class="ttdoc">Calculate the minimum of a sliding window of size 3. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00109">non_linear_filter_helpers.h:109</a></div></div>
370 </div><!-- fragment -->
373 <a class="anchor" id="a37f5aa2a4245f4b6b925640f73a77fdb"></a>
374 <div class="memitem">
375 <div class="memproto">
376 <table class="memname">
378 <td class="memname">__kernel void non_linear_filter_disk3x3 </td>
380 <td class="paramtype">__global uchar * </td>
381 <td class="paramname"><em>src_ptr</em>, </td>
384 <td class="paramkey"></td>
386 <td class="paramtype">uint </td>
387 <td class="paramname"><em>src_stride_x</em>, </td>
390 <td class="paramkey"></td>
392 <td class="paramtype">uint </td>
393 <td class="paramname"><em>src_step_x</em>, </td>
396 <td class="paramkey"></td>
398 <td class="paramtype">uint </td>
399 <td class="paramname"><em>src_stride_y</em>, </td>
402 <td class="paramkey"></td>
404 <td class="paramtype">uint </td>
405 <td class="paramname"><em>src_step_y</em>, </td>
408 <td class="paramkey"></td>
410 <td class="paramtype">uint </td>
411 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
414 <td class="paramkey"></td>
416 <td class="paramtype">__global uchar * </td>
417 <td class="paramname"><em>dst_ptr</em>, </td>
420 <td class="paramkey"></td>
422 <td class="paramtype">uint </td>
423 <td class="paramname"><em>dst_stride_x</em>, </td>
426 <td class="paramkey"></td>
428 <td class="paramtype">uint </td>
429 <td class="paramname"><em>dst_step_x</em>, </td>
432 <td class="paramkey"></td>
434 <td class="paramtype">uint </td>
435 <td class="paramname"><em>dst_stride_y</em>, </td>
438 <td class="paramkey"></td>
440 <td class="paramtype">uint </td>
441 <td class="paramname"><em>dst_step_y</em>, </td>
444 <td class="paramkey"></td>
446 <td class="paramtype">uint </td>
447 <td class="paramname"><em>dst_offset_first_element_in_bytes</em> </td>
455 </div><div class="memdoc">
457 <p>This function applies a non linear filter on a 3x3 disk basis on an input image. </p>
458 <dl class="section note"><dt>Note</dt><dd>The needed filter operation is defined through the preprocessor by passing either -DMIN, -DMAX or -DMEDIAN.</dd></dl>
459 <dl class="params"><dt>Parameters</dt><dd>
460 <table class="params">
461 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: U8 </td></tr>
462 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
463 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
464 <tr><td class="paramdir">[in]</td><td class="paramname">src_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
465 <tr><td class="paramdir">[in]</td><td class="paramname">src_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
466 <tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source image </td></tr>
467 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: U8 </td></tr>
468 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
469 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
470 <tr><td class="paramdir">[in]</td><td class="paramname">dst_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
471 <tr><td class="paramdir">[in]</td><td class="paramname">dst_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
472 <tr><td class="paramdir">[in]</td><td class="paramname">dst_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
477 <p>Definition at line <a class="el" href="non__linear__filter3x3_8cl_source.xhtml#l00150">150</a> of file <a class="el" href="non__linear__filter3x3_8cl_source.xhtml">non_linear_filter3x3.cl</a>.</p>
479 <p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="helpers_8h_source.xhtml#l00201">offset()</a>, <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>, <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00120">row_reduce_max_3()</a>, <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00109">row_reduce_min_3()</a>, and <a class="el" href="non__linear__filter__helpers_8h_source.xhtml#l00078">sort9()</a>.</p>
480 <div class="fragment"><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <a class="code" href="struct_image.xhtml">Image</a> src = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <a class="code" href="struct_image.xhtml">Image</a> dst = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="comment">// Load values</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  uchar16 top = vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, -1));</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  uchar16 middle = vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, 0));</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  uchar16 bottom = vload16(0, <a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, 1));</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// Apply respective filter</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="preprocessor">#if defined MIN</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  uchar16 tmp = min(top, min(middle, bottom));</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  uchar8 out = <a class="code" href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a>(tmp);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#elif defined MAX</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  uchar16 tmp = max(top, max(middle, bottom));</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  uchar8 out = <a class="code" href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a>(tmp);</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor">#elif defined MEDIAN</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  uchar8 p0 = top.s01234567;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  uchar8 p1 = top.s12345678;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  uchar8 p2 = top.s23456789;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  uchar8 p3 = middle.s01234567;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  uchar8 p4 = middle.s12345678;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  uchar8 p5 = middle.s23456789;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  uchar8 p6 = bottom.s01234567;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  uchar8 p7 = bottom.s12345678;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  uchar8 p8 = bottom.s23456789;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  uchar8 out = <a class="code" href="non__linear__filter__helpers_8h.xhtml#a0960df49e39a9499677066c32600c17f">sort9</a>(p0, p1, p2, p3, p4, p5, p6, p7, p8);</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="preprocessor">#error "Unsupported filter function"</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> </div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Store result</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  vstore8(out, 0, dst.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> }</div><div class="ttc" id="helpers_8h_xhtml_a009469e4d9b8fce3b6d5e97d2077827d"><div class="ttname"><a href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a></div><div class="ttdeci">__global uchar * offset(const Image *img, int x, int y)</div><div class="ttdoc">Get the pointer position of a Image. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00201">helpers.h:201</a></div></div>
481 <div class="ttc" id="helpers_8h_xhtml_aebe814363556c244be043b13e7969197"><div class="ttname"><a href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_IMAGE_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00073">helpers.h:73</a></div></div>
482 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a3138dafa8474a59f73dd837073f18ed7"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a3138dafa8474a59f73dd837073f18ed7">row_reduce_max_3</a></div><div class="ttdeci">uchar8 row_reduce_max_3(uchar16 val)</div><div class="ttdoc">Calculate the maximum of a sliding window of size 3. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00120">non_linear_filter_helpers.h:120</a></div></div>
483 <div class="ttc" id="struct_image_xhtml"><div class="ttname"><a href="struct_image.xhtml">Image</a></div><div class="ttdoc">Structure to hold Image information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00095">helpers.h:95</a></div></div>
484 <div class="ttc" id="struct_image_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">Image::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00097">helpers.h:97</a></div></div>
485 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_a0960df49e39a9499677066c32600c17f"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#a0960df49e39a9499677066c32600c17f">sort9</a></div><div class="ttdeci">uchar8 sort9(uchar8 p0, uchar8 p1, uchar8 p2, uchar8 p3, uchar8 p4, uchar8 p5, uchar8 p6, uchar8 p7, uchar8 p8)</div><div class="ttdoc">Sorting network to sort 9 vectors of 8 elements and return their median. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00078">non_linear_filter_helpers.h:78</a></div></div>
486 <div class="ttc" id="non__linear__filter__helpers_8h_xhtml_ae3e09114bb887de4e20122eed42671a1"><div class="ttname"><a href="non__linear__filter__helpers_8h.xhtml#ae3e09114bb887de4e20122eed42671a1">row_reduce_min_3</a></div><div class="ttdeci">uchar8 row_reduce_min_3(uchar16 val)</div><div class="ttdoc">Calculate the minimum of a sliding window of size 3. </div><div class="ttdef"><b>Definition:</b> <a href="non__linear__filter__helpers_8h_source.xhtml#l00109">non_linear_filter_helpers.h:109</a></div></div>
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