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119 <div class="title">nonmax.cl File Reference</div> </div>
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122 <div class="textblock"><code>#include "<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>"</code><br />
124 <p><a href="nonmax_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:a07874f4cb83d115b3c588835d17a8f93"><td class="memItemLeft" align="right" valign="top">__kernel void </td><td class="memItemRight" valign="bottom"><a class="el" href="nonmax_8cl.xhtml#a07874f4cb83d115b3c588835d17a8f93">non_max_suppression</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:a07874f4cb83d115b3c588835d17a8f93"><td class="mdescLeft"> </td><td class="mdescRight">This function performs Non maxima suppression over a 3x3 window on a given image. <a href="#a07874f4cb83d115b3c588835d17a8f93">More...</a><br /></td></tr>
130 <tr class="separator:a07874f4cb83d115b3c588835d17a8f93"><td class="memSeparator" colspan="2"> </td></tr>
132 <h2 class="groupheader">Function Documentation</h2>
133 <a class="anchor" id="a07874f4cb83d115b3c588835d17a8f93"></a>
134 <div class="memitem">
135 <div class="memproto">
136 <table class="memname">
138 <td class="memname">__kernel void non_max_suppression </td>
140 <td class="paramtype">__global uchar * </td>
141 <td class="paramname"><em>src_ptr</em>, </td>
144 <td class="paramkey"></td>
146 <td class="paramtype">uint </td>
147 <td class="paramname"><em>src_stride_x</em>, </td>
150 <td class="paramkey"></td>
152 <td class="paramtype">uint </td>
153 <td class="paramname"><em>src_step_x</em>, </td>
156 <td class="paramkey"></td>
158 <td class="paramtype">uint </td>
159 <td class="paramname"><em>src_stride_y</em>, </td>
162 <td class="paramkey"></td>
164 <td class="paramtype">uint </td>
165 <td class="paramname"><em>src_step_y</em>, </td>
168 <td class="paramkey"></td>
170 <td class="paramtype">uint </td>
171 <td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
174 <td class="paramkey"></td>
176 <td class="paramtype">__global uchar * </td>
177 <td class="paramname"><em>dst_ptr</em>, </td>
180 <td class="paramkey"></td>
182 <td class="paramtype">uint </td>
183 <td class="paramname"><em>dst_stride_x</em>, </td>
186 <td class="paramkey"></td>
188 <td class="paramtype">uint </td>
189 <td class="paramname"><em>dst_step_x</em>, </td>
192 <td class="paramkey"></td>
194 <td class="paramtype">uint </td>
195 <td class="paramname"><em>dst_stride_y</em>, </td>
198 <td class="paramkey"></td>
200 <td class="paramtype">uint </td>
201 <td class="paramname"><em>dst_step_y</em>, </td>
204 <td class="paramkey"></td>
206 <td class="paramtype">uint </td>
207 <td class="paramname"><em>dst_offset_first_element_in_bytes</em> </td>
215 </div><div class="memdoc">
217 <p>This function performs Non maxima suppression over a 3x3 window on a given image. </p>
218 <dl class="params"><dt>Parameters</dt><dd>
219 <table class="params">
220 <tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source image. Supported data types: F32 </td></tr>
221 <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>
222 <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>
223 <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>
224 <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>
225 <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>
226 <tr><td class="paramdir">[out]</td><td class="paramname">dst_ptr</td><td>Pointer to the destination image. Supported data types: F32 </td></tr>
227 <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>
228 <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>
229 <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>
230 <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>
231 <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>
236 <p>Definition at line <a class="el" href="nonmax_8cl_source.xhtml#l00041">41</a> of file <a class="el" href="nonmax_8cl_source.xhtml">nonmax.cl</a>.</p>
238 <p>References <a class="el" href="helpers_8h_source.xhtml#l00104">CONVERT_TO_IMAGE_STRUCT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, <a class="el" href="_c_l_2_convolution_8cpp_source.xhtml#l00137">arm_compute::test::validation::dst</a>, <a class="el" href="helpers_8h_source.xhtml#l00303">offset()</a>, <a class="el" href="helpers_8h_source.xhtml#l00144">Image::ptr</a>, <a class="el" href="_c_l_2_convolution_8cpp_source.xhtml#l00147">arm_compute::test::validation::src</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
240 <p>Referenced by <a class="el" href="_n_e_fast_corners_kernel_8h_source.xhtml#l00041">NEFastCornersKernel::name()</a>.</p>
241 <div class="fragment"><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="struct_image.xhtml">Image</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">src</a> = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(src);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="struct_image.xhtml">Image</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#adbf67dcee294e673cf796f1ed8aeb6a4">dst</a> = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(dst);</div><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="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 8)</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  vc = vload8(0, (__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)src.ptr);</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>  if(all(vc == (<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>)0))</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  vstore8(0, 0, (__global DATA_TYPE *)dst.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  }</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 16)</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  nc = vload16(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, -1));</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(DATA_TYPE, 8)</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  out = select((DATA_TYPE)0, vc, (vc >= nc.s01234567) && (vc >= nc.s12345678) && (vc >= nc.s23456789));</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>  nc = vload16(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, 0));</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  out = select((DATA_TYPE)0, out, (vc >= nc.s01234567) && (vc > nc.s23456789));</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  nc = vload16(0, (__global DATA_TYPE *)<a class="code" href="helpers_8h.xhtml#a009469e4d9b8fce3b6d5e97d2077827d">offset</a>(&src, -1, +1));</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  out = select((DATA_TYPE)0, out, (vc > nc.s01234567) && (vc > nc.s12345678) && (vc > nc.s23456789));</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  vstore8(out, 0, (__global DATA_TYPE *)dst.ptr);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div><div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
242 <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#l00303">helpers.h:303</a></div></div>
243 <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#l00104">helpers.h:104</a></div></div>
244 <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_adbf67dcee294e673cf796f1ed8aeb6a4"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#adbf67dcee294e673cf796f1ed8aeb6a4">arm_compute::test::validation::dst</a></div><div class="ttdeci">CLTensor dst</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_convolution_8cpp_source.xhtml#l00137">Convolution.cpp:137</a></div></div>
245 <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#l00142">helpers.h:142</a></div></div>
246 <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#l00144">helpers.h:144</a></div></div>
247 <div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
248 <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a6743f0a130e8311e6f5b1a23df102472"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a6743f0a130e8311e6f5b1a23df102472">arm_compute::test::validation::src</a></div><div class="ttdeci">convolution configure & src</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_convolution_8cpp_source.xhtml#l00147">Convolution.cpp:147</a></div></div>
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