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gerrit-public.fairphone.software / platform / external / ComputeLibrary / 664d833b9d7b569db60b0f6d93e80f91f2c07c39 / . / documentation / threshold_8cl.xhtml
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Anthony Barbier46d59272017-05-04 09:15:15 +0100[diff] [blame]43 &#160;<span id="projectnumber">17.05</span>
Anthony Barbier871448e2017-03-24 14:54:29 +0000[diff] [blame]44 </div>
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114<div class="header">
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116<a href="#func-members">Functions</a> </div>
117 <div class="headertitle">
118<div class="title">threshold.cl File Reference</div> </div>
119</div><!--header-->
120<div class="contents">
121<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br />
122</div>
123<p><a href="threshold_8cl_source.xhtml">Go to the source code of this file.</a></p>
124<table class="memberdecls">
125<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
126Functions</h2></td></tr>
127<tr class="memitem:a6c8801a257e3e3d80af8b60967975d42"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8cl.xhtml#a6c8801a257e3e3d80af8b60967975d42">threshold_binary</a> (__global uchar *in_ptr, uint in_stride_x, uint in_step_x, uint in_stride_y, uint in_step_y, uint in_offset_first_element_in_bytes, __global uchar *out_ptr, uint out_stride_x, uint out_step_x, uint out_stride_y, uint out_step_y, uint out_offset_first_element_in_bytes, const uchar false_val, const uchar true_val, const uchar threshold)</td></tr>
128<tr class="memdesc:a6c8801a257e3e3d80af8b60967975d42"><td class="mdescLeft">&#160;</td><td class="mdescRight">Perform binary thresholding on an image. <a href="#a6c8801a257e3e3d80af8b60967975d42">More...</a><br /></td></tr>
129<tr class="separator:a6c8801a257e3e3d80af8b60967975d42"><td class="memSeparator" colspan="2">&#160;</td></tr>
130<tr class="memitem:a2e3f1b089d9b33880c9bb6e98f294bba"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8cl.xhtml#a2e3f1b089d9b33880c9bb6e98f294bba">threshold_range</a> (__global uchar *in_ptr, uint in_stride_x, uint in_step_x, uint in_stride_y, uint in_step_y, uint in_offset_first_element_in_bytes, __global uchar *out_ptr, uint out_stride_x, uint out_step_x, uint out_stride_y, uint out_step_y, uint out_offset_first_element_in_bytes, const uchar false_val, const uchar true_val, const uchar lower, const uchar upper)</td></tr>
131<tr class="memdesc:a2e3f1b089d9b33880c9bb6e98f294bba"><td class="mdescLeft">&#160;</td><td class="mdescRight">Perform range thresholding on an image. <a href="#a2e3f1b089d9b33880c9bb6e98f294bba">More...</a><br /></td></tr>
132<tr class="separator:a2e3f1b089d9b33880c9bb6e98f294bba"><td class="memSeparator" colspan="2">&#160;</td></tr>
133</table>
134<h2 class="groupheader">Function Documentation</h2>
135<a class="anchor" id="a6c8801a257e3e3d80af8b60967975d42"></a>
136<div class="memitem">
137<div class="memproto">
138 <table class="memname">
139 <tr>
140 <td class="memname">__kernel void threshold_binary </td>
141 <td>(</td>
142 <td class="paramtype">__global uchar *&#160;</td>
143 <td class="paramname"><em>in_ptr</em>, </td>
144 </tr>
145 <tr>
146 <td class="paramkey"></td>
147 <td></td>
148 <td class="paramtype">uint&#160;</td>
149 <td class="paramname"><em>in_stride_x</em>, </td>
150 </tr>
151 <tr>
152 <td class="paramkey"></td>
153 <td></td>
154 <td class="paramtype">uint&#160;</td>
155 <td class="paramname"><em>in_step_x</em>, </td>
156 </tr>
157 <tr>
158 <td class="paramkey"></td>
159 <td></td>
160 <td class="paramtype">uint&#160;</td>
161 <td class="paramname"><em>in_stride_y</em>, </td>
162 </tr>
163 <tr>
164 <td class="paramkey"></td>
165 <td></td>
166 <td class="paramtype">uint&#160;</td>
167 <td class="paramname"><em>in_step_y</em>, </td>
168 </tr>
169 <tr>
170 <td class="paramkey"></td>
171 <td></td>
172 <td class="paramtype">uint&#160;</td>
173 <td class="paramname"><em>in_offset_first_element_in_bytes</em>, </td>
174 </tr>
175 <tr>
176 <td class="paramkey"></td>
177 <td></td>
178 <td class="paramtype">__global uchar *&#160;</td>
179 <td class="paramname"><em>out_ptr</em>, </td>
180 </tr>
181 <tr>
182 <td class="paramkey"></td>
183 <td></td>
184 <td class="paramtype">uint&#160;</td>
185 <td class="paramname"><em>out_stride_x</em>, </td>
186 </tr>
187 <tr>
188 <td class="paramkey"></td>
189 <td></td>
190 <td class="paramtype">uint&#160;</td>
191 <td class="paramname"><em>out_step_x</em>, </td>
192 </tr>
193 <tr>
194 <td class="paramkey"></td>
195 <td></td>
196 <td class="paramtype">uint&#160;</td>
197 <td class="paramname"><em>out_stride_y</em>, </td>
198 </tr>
199 <tr>
200 <td class="paramkey"></td>
201 <td></td>
202 <td class="paramtype">uint&#160;</td>
203 <td class="paramname"><em>out_step_y</em>, </td>
204 </tr>
205 <tr>
206 <td class="paramkey"></td>
207 <td></td>
208 <td class="paramtype">uint&#160;</td>
209 <td class="paramname"><em>out_offset_first_element_in_bytes</em>, </td>
210 </tr>
211 <tr>
212 <td class="paramkey"></td>
213 <td></td>
214 <td class="paramtype">const uchar&#160;</td>
215 <td class="paramname"><em>false_val</em>, </td>
216 </tr>
217 <tr>
218 <td class="paramkey"></td>
219 <td></td>
220 <td class="paramtype">const uchar&#160;</td>
221 <td class="paramname"><em>true_val</em>, </td>
222 </tr>
223 <tr>
224 <td class="paramkey"></td>
225 <td></td>
226 <td class="paramtype">const uchar&#160;</td>
227 <td class="paramname"><em>threshold</em>&#160;</td>
228 </tr>
229 <tr>
230 <td></td>
231 <td>)</td>
232 <td></td><td></td>
233 </tr>
234 </table>
235</div><div class="memdoc">
236
237<p>Perform binary thresholding on an image. </p>
238<dl class="params"><dt>Parameters</dt><dd>
239 <table class="params">
240 <tr><td class="paramdir">[in]</td><td class="paramname">in_ptr</td><td>Pointer to the source image </td></tr>
241 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
242 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
243 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
244 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
245 <tr><td class="paramdir">[in]</td><td class="paramname">in_offset_first_element_in_bytes</td><td>The offset of the first element in the first source image </td></tr>
246 <tr><td class="paramdir">[out]</td><td class="paramname">out_ptr</td><td>Pointer to the destination image </td></tr>
247 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
248 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
249 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
250 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
251 <tr><td class="paramdir">[in]</td><td class="paramname">out_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
252 <tr><td class="paramdir">[in]</td><td class="paramname">false_val</td><td>False value </td></tr>
253 <tr><td class="paramdir">[in]</td><td class="paramname">true_val</td><td>True value </td></tr>
254 <tr><td class="paramdir">[in]</td><td class="paramname">threshold</td><td>The thresold value </td></tr>
255 </table>
256 </dd>
257</dl>
258
259<p>Definition at line <a class="el" href="threshold_8cl_source.xhtml#l00044">44</a> of file <a class="el" href="threshold_8cl_source.xhtml">threshold.cl</a>.</p>
260
261<p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>.</p>
262<div class="fragment"><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;{</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> in = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(in);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> out = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="comment">// Load data</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; uchar16 in_data = vload16(0, in.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="comment">// Perform binary thresholding</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; in_data = select((uchar16)false_val, (uchar16)true_val, in_data &gt; (uchar16)threshold);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="comment">// Store result</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; vstore16(in_data, 0, out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;}</div><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>
263<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>
264<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>
265</div><!-- fragment -->
266</div>
267</div>
268<a class="anchor" id="a2e3f1b089d9b33880c9bb6e98f294bba"></a>
269<div class="memitem">
270<div class="memproto">
271 <table class="memname">
272 <tr>
273 <td class="memname">__kernel void threshold_range </td>
274 <td>(</td>
275 <td class="paramtype">__global uchar *&#160;</td>
276 <td class="paramname"><em>in_ptr</em>, </td>
277 </tr>
278 <tr>
279 <td class="paramkey"></td>
280 <td></td>
281 <td class="paramtype">uint&#160;</td>
282 <td class="paramname"><em>in_stride_x</em>, </td>
283 </tr>
284 <tr>
285 <td class="paramkey"></td>
286 <td></td>
287 <td class="paramtype">uint&#160;</td>
288 <td class="paramname"><em>in_step_x</em>, </td>
289 </tr>
290 <tr>
291 <td class="paramkey"></td>
292 <td></td>
293 <td class="paramtype">uint&#160;</td>
294 <td class="paramname"><em>in_stride_y</em>, </td>
295 </tr>
296 <tr>
297 <td class="paramkey"></td>
298 <td></td>
299 <td class="paramtype">uint&#160;</td>
300 <td class="paramname"><em>in_step_y</em>, </td>
301 </tr>
302 <tr>
303 <td class="paramkey"></td>
304 <td></td>
305 <td class="paramtype">uint&#160;</td>
306 <td class="paramname"><em>in_offset_first_element_in_bytes</em>, </td>
307 </tr>
308 <tr>
309 <td class="paramkey"></td>
310 <td></td>
311 <td class="paramtype">__global uchar *&#160;</td>
312 <td class="paramname"><em>out_ptr</em>, </td>
313 </tr>
314 <tr>
315 <td class="paramkey"></td>
316 <td></td>
317 <td class="paramtype">uint&#160;</td>
318 <td class="paramname"><em>out_stride_x</em>, </td>
319 </tr>
320 <tr>
321 <td class="paramkey"></td>
322 <td></td>
323 <td class="paramtype">uint&#160;</td>
324 <td class="paramname"><em>out_step_x</em>, </td>
325 </tr>
326 <tr>
327 <td class="paramkey"></td>
328 <td></td>
329 <td class="paramtype">uint&#160;</td>
330 <td class="paramname"><em>out_stride_y</em>, </td>
331 </tr>
332 <tr>
333 <td class="paramkey"></td>
334 <td></td>
335 <td class="paramtype">uint&#160;</td>
336 <td class="paramname"><em>out_step_y</em>, </td>
337 </tr>
338 <tr>
339 <td class="paramkey"></td>
340 <td></td>
341 <td class="paramtype">uint&#160;</td>
342 <td class="paramname"><em>out_offset_first_element_in_bytes</em>, </td>
343 </tr>
344 <tr>
345 <td class="paramkey"></td>
346 <td></td>
347 <td class="paramtype">const uchar&#160;</td>
348 <td class="paramname"><em>false_val</em>, </td>
349 </tr>
350 <tr>
351 <td class="paramkey"></td>
352 <td></td>
353 <td class="paramtype">const uchar&#160;</td>
354 <td class="paramname"><em>true_val</em>, </td>
355 </tr>
356 <tr>
357 <td class="paramkey"></td>
358 <td></td>
359 <td class="paramtype">const uchar&#160;</td>
360 <td class="paramname"><em>lower</em>, </td>
361 </tr>
362 <tr>
363 <td class="paramkey"></td>
364 <td></td>
365 <td class="paramtype">const uchar&#160;</td>
366 <td class="paramname"><em>upper</em>&#160;</td>
367 </tr>
368 <tr>
369 <td></td>
370 <td>)</td>
371 <td></td><td></td>
372 </tr>
373 </table>
374</div><div class="memdoc">
375
376<p>Perform range thresholding on an image. </p>
377<dl class="params"><dt>Parameters</dt><dd>
378 <table class="params">
379 <tr><td class="paramdir">[in]</td><td class="paramname">in_ptr</td><td>Pointer to the source image </td></tr>
380 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_x</td><td>Stride of the source image in X dimension (in bytes) </td></tr>
381 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
382 <tr><td class="paramdir">[in]</td><td class="paramname">in_stride_y</td><td>Stride of the source image in Y dimension (in bytes) </td></tr>
383 <tr><td class="paramdir">[in]</td><td class="paramname">in_step_y</td><td>src_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
384 <tr><td class="paramdir">[in]</td><td class="paramname">in_offset_first_element_in_bytes</td><td>The offset of the first element in the first source image </td></tr>
385 <tr><td class="paramdir">[out]</td><td class="paramname">out_ptr</td><td>Pointer to the destination image </td></tr>
386 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_x</td><td>Stride of the destination image in X dimension (in bytes) </td></tr>
387 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_x</td><td>dst_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
388 <tr><td class="paramdir">[in]</td><td class="paramname">out_stride_y</td><td>Stride of the destination image in Y dimension (in bytes) </td></tr>
389 <tr><td class="paramdir">[in]</td><td class="paramname">out_step_y</td><td>dst_stride_y * number of elements along Y processed per workitem(in bytes) </td></tr>
390 <tr><td class="paramdir">[in]</td><td class="paramname">out_offset_first_element_in_bytes</td><td>The offset of the first element in the destination image </td></tr>
391 <tr><td class="paramdir">[in]</td><td class="paramname">false_val</td><td>False value </td></tr>
392 <tr><td class="paramdir">[in]</td><td class="paramname">true_val</td><td>True value </td></tr>
393 <tr><td class="paramdir">[in]</td><td class="paramname">lower</td><td>Lower threshold </td></tr>
394 <tr><td class="paramdir">[in]</td><td class="paramname">upper</td><td>Upper threshold </td></tr>
395 </table>
396 </dd>
397</dl>
398
399<p>Definition at line <a class="el" href="threshold_8cl_source.xhtml#l00084">84</a> of file <a class="el" href="threshold_8cl_source.xhtml">threshold.cl</a>.</p>
400
401<p>References <a class="el" href="helpers_8h_source.xhtml#l00073">CONVERT_TO_IMAGE_STRUCT</a>, and <a class="el" href="helpers_8h_source.xhtml#l00097">Image::ptr</a>.</p>
402<div class="fragment"><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;{</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="comment">// Get pixels pointer</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> in = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(in);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <a class="code" href="struct_image.xhtml">Image</a> out = <a class="code" href="helpers_8h.xhtml#aebe814363556c244be043b13e7969197">CONVERT_TO_IMAGE_STRUCT</a>(out);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <span class="comment">// Load data</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; uchar16 in_data = vload16(0, in.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="comment">// Perform range thresholding</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; in_data = select((uchar16)true_val, (uchar16)false_val, in_data &gt; (uchar16)upper || in_data &lt; (uchar16)lower);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="comment">// Store result</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; vstore16(in_data, 0, out.<a class="code" href="struct_image.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;}</div><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>
403<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>
404<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>
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413 <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.xhtml">src</a></li><li class="navelem"><a class="el" href="dir_aebb8dcc11953d78e620bbef0b9e2183.xhtml">core</a></li><li class="navelem"><a class="el" href="dir_8c278f79c760e5c5fbd911f9870614c1.xhtml">CL</a></li><li class="navelem"><a class="el" href="dir_25885286e9dad4fa105b7b25a8031bbf.xhtml">cl_kernels</a></li><li class="navelem"><a class="el" href="threshold_8cl.xhtml">threshold.cl</a></li>
Anthony Barbier46d59272017-05-04 09:15:15 +0100[diff] [blame]414 <li class="footer">Generated on Wed May 3 2017 17:20:04 for ARM Compute Library by
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416 <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.11 </li>
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