Visual Servoing Platform  version 3.6.1 under development (2024-07-27)
testImageMorphology.cpp
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30  * Description:
31  * Test image morphology.
32  */
33 
40 #include <visp3/core/vpConfig.h>
41 
42 #if defined(VISP_HAVE_CATCH2)
43 #define CATCH_CONFIG_RUNNER
44 #include "common.hpp"
45 #include <catch.hpp>
46 #include <visp3/core/vpImageFilter.h>
47 #include <visp3/core/vpImageMorphology.h>
48 
49 #ifdef ENABLE_VISP_NAMESPACE
50 using namespace VISP_NAMESPACE_NAME;
51 #endif
52 TEST_CASE("Binary image morphology", "[image_morphology]")
53 {
54  unsigned char image_data[8 * 16] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
55  0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0,
56  0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0,
57  0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1,
58  0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1,
59  1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
60  1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1,
61  1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0 };
62 
63  vpImage<unsigned char> I(image_data, 8, 16, true);
64 
65  SECTION("Dilatation")
66  {
67  SECTION("4-connexity")
68  {
69  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_4;
70  vpImage<unsigned char> I_morpho_ref = I;
71  vpImage<unsigned char> I_morpho_tpl = I;
72  vpImage<unsigned char> I_morpho = I;
73 
74  common_tools::imageDilatationRef(I_morpho_ref, connexity);
75  vpImageMorphology::dilatation(I_morpho_tpl, (unsigned char)1, (unsigned char)0, connexity);
76  vpImageMorphology::dilatation<unsigned char>(I_morpho, connexity);
77 
78  CHECK((I_morpho_ref == I_morpho_tpl));
79  CHECK((I_morpho_ref == I_morpho));
80  }
81  SECTION("8-connexity")
82  {
83  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_8;
84  vpImage<unsigned char> I_morpho_ref = I;
85  vpImage<unsigned char> I_morpho_tpl = I;
86  vpImage<unsigned char> I_morpho = I;
87 
88  common_tools::imageDilatationRef(I_morpho_ref, connexity);
89  vpImageMorphology::dilatation(I_morpho_tpl, (unsigned char)1, (unsigned char)0, connexity);
90  vpImageMorphology::dilatation<unsigned char>(I_morpho, connexity);
91 
92  CHECK((I_morpho_ref == I_morpho_tpl));
93  CHECK((I_morpho_ref == I_morpho));
94  }
95  }
96 
97  SECTION("Erosion")
98  {
99  SECTION("4-connexity")
100  {
101  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_4;
102  vpImage<unsigned char> I_morpho_ref = I;
103  vpImage<unsigned char> I_morpho_tpl = I;
104  vpImage<unsigned char> I_morpho = I;
105 
106  common_tools::imageErosionRef(I_morpho_ref, connexity);
107  vpImageMorphology::erosion(I_morpho_tpl, (unsigned char)1, (unsigned char)0, connexity);
108  vpImageMorphology::erosion<unsigned char>(I_morpho, connexity);
109 
110  CHECK((I_morpho_ref == I_morpho_tpl));
111  CHECK((I_morpho_ref == I_morpho));
112  }
113 
114  SECTION("8-connexity")
115  {
116  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_8;
117  vpImage<unsigned char> I_morpho_ref = I;
118  vpImage<unsigned char> I_morpho_tpl = I;
119  vpImage<unsigned char> I_morpho = I;
120 
121  common_tools::imageErosionRef(I_morpho_ref, connexity);
122  vpImageMorphology::erosion(I_morpho_tpl, (unsigned char)1, (unsigned char)0, connexity);
123  vpImageMorphology::erosion<unsigned char>(I_morpho, connexity);
124 
125  CHECK((I_morpho_ref == I_morpho_tpl));
126  CHECK((I_morpho_ref == I_morpho));
127  }
128 
129  SECTION("8-connexity-size5")
130  {
131  vpImage<unsigned char> I_dilatation_ref(8, 16, 1);
132  I_dilatation_ref[0][0] = 0;
133  I_dilatation_ref[0][1] = 0;
134  I_dilatation_ref[0][2] = 0;
135  I_dilatation_ref[6][12] = 0;
136  I_dilatation_ref[7][12] = 0;
137  vpImage<unsigned char> I_dilatation = I;
138  vpImage<unsigned char> I_erosion_ref(8, 16, 0);
139  vpImage<unsigned char> I_erosion = I;
140 
141  const int size = 5;
142  vpImageMorphology::dilatation(I_dilatation, size);
143  vpImageMorphology::erosion(I_erosion, size);
144 
145  CHECK((I_dilatation_ref == I_dilatation));
146  CHECK((I_erosion_ref == I_erosion));
147  }
148  }
149 
150  SECTION("Matlab reference")
151  {
152  SECTION("4-connexity")
153  {
154  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_4;
155  vpImage<unsigned char> I_dilatation = I;
156  vpImageMorphology::dilatation<unsigned char>(I_dilatation, connexity);
157 
158  unsigned char image_data_dilatation[8 * 16] = {
159  0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0,
160  0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1,
161  1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1,
162  1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 };
163  vpImage<unsigned char> I_dilatation_ref(image_data_dilatation, 8, 16, true);
164  CHECK((I_dilatation_ref == I_dilatation));
165 
166  vpImage<unsigned char> I_erosion = I_dilatation;
167  vpImageMorphology::erosion<unsigned char>(I_erosion, connexity);
168 
169  unsigned char image_data_erosion[8 * 16] = {
170  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0,
171  0, 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1,
172  0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0,
173  1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0 };
174  vpImage<unsigned char> I_erosion_ref(image_data_erosion, 8, 16, true);
175  CHECK((I_erosion_ref == I_erosion));
176  }
177 
178  SECTION("8-connexity")
179  {
180  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_8;
181  vpImage<unsigned char> I_dilatation = I;
182  vpImageMorphology::dilatation<unsigned char>(I_dilatation, connexity);
183 
184  unsigned char image_data_dilatation[8 * 16] = {
185  0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1,
186  0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
187  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1,
188  1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 };
189  vpImage<unsigned char> I_dilatation_ref(image_data_dilatation, 8, 16, true);
190  CHECK((I_dilatation_ref == I_dilatation));
191 
192  vpImage<unsigned char> I_erosion = I_dilatation;
193  vpImageMorphology::erosion<unsigned char>(I_erosion, connexity);
194 
195  unsigned char image_data_erosion[8 * 16] = {
196  0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0,
197  0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
198  0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1,
199  1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1 };
200  vpImage<unsigned char> I_erosion_ref(image_data_erosion, 8, 16, true);
201  CHECK((I_erosion_ref == I_erosion));
202  }
203  }
204 }
205 
206 TEST_CASE("Gray image morphology", "[image_morphology]")
207 {
208  vpImage<unsigned char> I;
209  common_tools::magicSquare(I, 17);
210 
211  SECTION("Dilatation")
212  {
213  SECTION("4-connexity")
214  {
215  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_4;
216  vpImage<unsigned char> I_morpho_ref = I;
217  vpImage<unsigned char> I_morpho = I;
218 
219  common_tools::imageDilatationRef(I_morpho_ref, connexity);
220  vpImageMorphology::dilatation<unsigned char>(I_morpho, connexity);
221 
222  CHECK((I_morpho_ref == I_morpho));
223  }
224  SECTION("8-connexity")
225  {
226  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_8;
227  vpImage<unsigned char> I_morpho_ref = I;
228  vpImage<unsigned char> I_morpho = I;
229 
230  common_tools::imageDilatationRef(I_morpho_ref, connexity);
231  vpImageMorphology::dilatation<unsigned char>(I_morpho, connexity);
232 
233  CHECK((I_morpho_ref == I_morpho));
234  }
235 
236  SECTION("8-connexity-size5")
237  {
238  const int size = 5;
239  vpImage<unsigned char> I_morpho(12, 12);
240  unsigned char count = 1;
241  for (int r = 0; r < 12; r++) {
242  for (int c = 0; c < 12; c++) {
243  I_morpho[r][c] = count;
244  count++;
245  }
246  }
247  unsigned char image_data_dilatation[12 * 12] = {
248  27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 36, 36,
249  39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 48, 48,
250  51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 60, 60,
251  63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 72, 72,
252  75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 84, 84,
253  87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 96, 96,
254  99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 108, 108,
255  111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 120, 120,
256  123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 132, 132,
257  135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 144, 144,
258  135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 144, 144,
259  135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 144, 144 };
260  vpImage<unsigned char> I_dilatation_ref(image_data_dilatation, 12, 12, true);
261 
262  vpImageMorphology::dilatation<unsigned char>(I_morpho, size);
263 
264  CHECK((I_dilatation_ref == I_morpho));
265  }
266  }
267 
268  SECTION("Erosion")
269  {
270  SECTION("4-connexity")
271  {
272  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_4;
273  vpImage<unsigned char> I_morpho_ref = I;
274  vpImage<unsigned char> I_morpho = I;
275 
276  common_tools::imageErosionRef(I_morpho_ref, connexity);
277  vpImageMorphology::erosion<unsigned char>(I_morpho, connexity);
278 
279  CHECK((I_morpho_ref == I_morpho));
280  }
281 
282  SECTION("8-connexity")
283  {
284  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_8;
285  vpImage<unsigned char> I_morpho_ref = I;
286  vpImage<unsigned char> I_morpho = I;
287 
288  common_tools::imageErosionRef(I_morpho_ref, connexity);
289  vpImageMorphology::erosion<unsigned char>(I_morpho, connexity);
290 
291  CHECK((I_morpho_ref == I_morpho));
292  }
293 
294  SECTION("8-connexity-size5")
295  {
296  const int size = 5;
297  vpImage<unsigned char> I_morpho(12, 12);
298  unsigned char count = 1;
299  for (int r = 0; r < 12; r++) {
300  for (int c = 0; c < 12; c++) {
301  I_morpho[r][c] = count;
302  count++;
303  }
304  }
305  unsigned char image_data_erosion[12 * 12] = {
306  1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
307  1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
308  1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
309  13, 13, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22,
310  25, 25, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
311  37, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
312  49, 49, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
313  61, 61, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70,
314  73, 73, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
315  85, 85, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94,
316  97, 97, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106,
317  109, 109, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118 };
318  vpImage<unsigned char> I_erosion_ref(image_data_erosion, 12, 12, true);
319 
320  vpImageMorphology::erosion<unsigned char>(I_morpho, size);
321 
322  CHECK((I_erosion_ref == I_morpho));
323  }
324  }
325 
326  SECTION("Matlab reference")
327  {
328  SECTION("4-connexity")
329  {
330  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_4;
331  vpImage<unsigned char> I_dilatation = I;
332  vpImageMorphology::dilatation<unsigned char>(I_dilatation, connexity);
333 
334  unsigned char image_data_dilatation[17 * 17] = {
335  174, 193, 212, 231, 250, 255, 255, 255, 255, 39, 58, 77, 96, 115, 134, 153, 154, 192, 211, 230, 249,
336  255, 255, 255, 255, 38, 57, 76, 95, 114, 133, 152, 170, 172, 210, 229, 248, 255, 255, 255, 255, 37,
337  56, 75, 94, 113, 132, 151, 170, 172, 190, 228, 247, 255, 255, 255, 255, 36, 55, 74, 93, 112, 131,
338  150, 169, 187, 190, 208, 246, 255, 255, 255, 255, 51, 54, 73, 92, 111, 130, 149, 168, 187, 189, 208,
339  226, 255, 255, 255, 255, 51, 53, 72, 91, 110, 129, 148, 167, 186, 204, 207, 226, 244, 255, 255, 255,
340  50, 68, 71, 90, 109, 128, 147, 166, 185, 204, 206, 225, 244, 255, 255, 255, 49, 68, 70, 89, 108,
341  127, 146, 165, 184, 203, 221, 224, 243, 255, 255, 255, 48, 67, 85, 88, 107, 126, 145, 164, 183, 202,
342  221, 223, 242, 255, 255, 255, 47, 66, 85, 87, 106, 125, 144, 163, 182, 201, 220, 238, 241, 255, 255,
343  255, 255, 65, 84, 102, 105, 124, 143, 162, 181, 200, 219, 238, 240, 255, 255, 255, 255, 45, 83, 102,
344  104, 123, 142, 161, 180, 199, 218, 237, 255, 255, 255, 255, 255, 45, 63, 101, 119, 122, 141, 160, 179,
345  198, 217, 236, 255, 255, 255, 255, 255, 44, 63, 81, 119, 121, 140, 159, 178, 197, 216, 235, 254, 255,
346  255, 255, 255, 43, 62, 81, 99, 136, 139, 158, 177, 196, 215, 234, 253, 255, 255, 255, 255, 42, 61,
347  80, 99, 117, 138, 157, 176, 195, 214, 233, 252, 255, 255, 255, 255, 41, 60, 79, 98, 117, 135, 156,
348  175, 194, 213, 232, 251, 255, 255, 255, 255, 40, 59, 78, 97, 116, 135, 135 };
349  vpImage<unsigned char> I_dilatation_ref(image_data_dilatation, 17, 17, true);
350  CHECK((I_dilatation_ref == I_dilatation));
351 
352  vpImage<unsigned char> I_erosion = I_dilatation;
353  vpImageMorphology::erosion<unsigned char>(I_erosion, connexity);
354 
355  unsigned char image_data_erosion[17 * 17] = {
356  174, 174, 193, 212, 231, 250, 255, 255, 38, 39, 39, 58, 77, 96, 115, 134, 153, 174, 192, 211, 230,
357  249, 255, 255, 37, 38, 38, 57, 76, 95, 114, 133, 152, 154, 192, 210, 229, 248, 255, 255, 36, 37,
358  37, 56, 75, 94, 113, 132, 151, 170, 172, 210, 228, 247, 255, 255, 36, 36, 36, 55, 74, 93, 112,
359  131, 150, 169, 172, 190, 228, 246, 255, 255, 51, 51, 36, 54, 73, 92, 111, 130, 149, 168, 187, 189,
360  208, 246, 255, 255, 50, 51, 51, 53, 72, 91, 110, 129, 148, 167, 186, 189, 207, 226, 255, 255, 49,
361  50, 50, 53, 71, 90, 109, 128, 147, 166, 185, 204, 206, 225, 244, 255, 48, 49, 49, 68, 70, 89,
362  108, 127, 146, 165, 184, 203, 206, 224, 243, 255, 47, 48, 48, 67, 70, 88, 107, 126, 145, 164, 183,
363  202, 221, 223, 242, 255, 255, 47, 47, 66, 85, 87, 106, 125, 144, 163, 182, 201, 220, 223, 241, 255,
364  255, 45, 47, 65, 84, 87, 105, 124, 143, 162, 181, 200, 219, 238, 240, 255, 255, 45, 45, 65, 83,
365  102, 104, 123, 142, 161, 180, 199, 218, 237, 240, 255, 255, 44, 45, 45, 83, 101, 104, 122, 141, 160,
366  179, 198, 217, 236, 255, 255, 255, 43, 44, 44, 63, 101, 119, 121, 140, 159, 178, 197, 216, 235, 254,
367  255, 255, 42, 43, 43, 62, 81, 119, 121, 139, 158, 177, 196, 215, 234, 253, 255, 255, 41, 42, 42,
368  61, 80, 99, 136, 138, 157, 176, 195, 214, 233, 252, 255, 255, 40, 41, 41, 60, 79, 98, 117, 138,
369  156, 175, 194, 213, 232, 251, 255, 255, 40, 40, 40, 59, 78, 97, 116, 135 };
370  vpImage<unsigned char> I_erosion_ref(image_data_erosion, 17, 17, true);
371  CHECK((I_erosion_ref == I_erosion));
372  }
373 
374  SECTION("8-connexity")
375  {
376  const vpImageMorphology::vpConnexityType connexity = vpImageMorphology::CONNEXITY_8;
377  vpImage<unsigned char> I_dilatation = I;
378  vpImageMorphology::dilatation<unsigned char>(I_dilatation, connexity);
379 
380  unsigned char image_data_dilatation[17 * 17] = {
381  192, 211, 230, 249, 255, 255, 255, 255, 255, 57, 76, 95, 114, 133, 152, 154, 154, 210, 229, 248, 255,
382  255, 255, 255, 255, 255, 75, 94, 113, 132, 151, 170, 172, 172, 228, 247, 255, 255, 255, 255, 255, 255,
383  74, 93, 112, 131, 150, 169, 171, 190, 190, 246, 255, 255, 255, 255, 255, 255, 73, 92, 111, 130, 149,
384  168, 187, 189, 208, 208, 255, 255, 255, 255, 255, 255, 72, 91, 110, 129, 148, 167, 186, 188, 207, 226,
385  226, 255, 255, 255, 255, 255, 71, 90, 109, 128, 147, 166, 185, 204, 206, 225, 244, 244, 255, 255, 255,
386  255, 70, 89, 108, 127, 146, 165, 184, 203, 205, 224, 243, 255, 255, 255, 255, 255, 69, 88, 107, 126,
387  145, 164, 183, 202, 221, 223, 242, 255, 255, 255, 255, 255, 85, 87, 106, 125, 144, 163, 182, 201, 220,
388  222, 241, 255, 255, 255, 255, 65, 84, 86, 105, 124, 143, 162, 181, 200, 219, 238, 240, 255, 255, 255,
389  255, 255, 83, 102, 104, 123, 142, 161, 180, 199, 218, 237, 239, 255, 255, 255, 255, 255, 255, 101, 103,
390  122, 141, 160, 179, 198, 217, 236, 255, 255, 255, 255, 255, 255, 255, 63, 119, 121, 140, 159, 178, 197,
391  216, 235, 254, 255, 255, 255, 255, 255, 255, 81, 81, 120, 139, 158, 177, 196, 215, 234, 253, 255, 255,
392  255, 255, 255, 255, 80, 99, 99, 138, 157, 176, 195, 214, 233, 252, 255, 255, 255, 255, 255, 255, 79,
393  98, 117, 117, 156, 175, 194, 213, 232, 251, 255, 255, 255, 255, 255, 255, 78, 97, 116, 135, 135, 156,
394  175, 194, 213, 232, 251, 255, 255, 255, 255, 255, 59, 78, 97, 116, 135, 135 };
395  vpImage<unsigned char> I_dilatation_ref(image_data_dilatation, 17, 17, true);
396  CHECK((I_dilatation_ref == I_dilatation));
397 
398  vpImage<unsigned char> I_erosion = I_dilatation;
399  vpImageMorphology::erosion<unsigned char>(I_erosion, connexity);
400 
401  unsigned char image_data_erosion[17 * 17] = {
402  192, 192, 211, 230, 249, 255, 255, 255, 57, 57, 57, 76, 95, 114, 133, 152, 154, 192, 192, 211, 230,
403  249, 255, 255, 74, 57, 57, 57, 76, 95, 114, 133, 152, 154, 210, 210, 229, 248, 255, 255, 73, 73,
404  73, 74, 75, 94, 113, 132, 151, 170, 172, 228, 228, 247, 255, 255, 72, 72, 72, 73, 74, 93, 112,
405  131, 150, 169, 171, 190, 246, 246, 255, 255, 71, 71, 71, 72, 73, 92, 111, 130, 149, 168, 187, 189,
406  208, 255, 255, 255, 70, 70, 70, 71, 72, 91, 110, 129, 148, 167, 186, 188, 207, 226, 255, 255, 69,
407  69, 69, 70, 71, 90, 109, 128, 147, 166, 185, 204, 206, 225, 244, 255, 85, 69, 69, 69, 70, 89,
408  108, 127, 146, 165, 184, 203, 205, 224, 243, 255, 65, 65, 69, 69, 69, 88, 107, 126, 145, 164, 183,
409  202, 221, 223, 242, 255, 255, 65, 65, 84, 85, 87, 106, 125, 144, 163, 182, 201, 220, 222, 241, 255,
410  255, 255, 65, 65, 84, 86, 105, 124, 143, 162, 181, 200, 219, 238, 240, 255, 255, 63, 63, 83, 83,
411  102, 104, 123, 142, 161, 180, 199, 218, 237, 239, 255, 255, 81, 63, 63, 101, 101, 103, 122, 141, 160,
412  179, 198, 217, 236, 255, 255, 255, 80, 80, 63, 63, 119, 119, 121, 140, 159, 178, 197, 216, 235, 254,
413  255, 255, 79, 79, 79, 80, 81, 120, 120, 139, 158, 177, 196, 215, 234, 253, 255, 255, 78, 78, 78,
414  79, 80, 99, 138, 138, 157, 176, 195, 214, 233, 252, 255, 255, 59, 59, 59, 78, 79, 98, 117, 156,
415  156, 175, 194, 213, 232, 251, 255, 255, 255, 59, 59, 59, 78, 97, 116, 135 };
416  vpImage<unsigned char> I_erosion_ref(image_data_erosion, 17, 17, true);
417  CHECK((I_erosion_ref == I_erosion));
418  }
419  }
420 }
421 
422 int main(int argc, char *argv[])
423 {
424  Catch::Session session; // There must be exactly one instance
425 
426  // Let Catch (using Clara) parse the command line
427  session.applyCommandLine(argc, argv);
428 
429  int numFailed = session.run();
430 
431  // numFailed is clamped to 255 as some unices only use the lower 8 bits.
432  // This clamping has already been applied, so just return it here
433  // You can also do any post run clean-up here
434  return numFailed;
435 }
436 #else
437 int main() { return EXIT_SUCCESS; }
438 #endif
vpImageMorphology::dilatation
static void dilatation(vpImage< Type > &I, Type value, Type value_out, vpConnexityType connexity=CONNEXITY_4)
Definition: vpImageMorphology.h:298
vpImageMorphology::erosion
static void erosion(vpImage< Type > &I, Type value, Type value_out, vpConnexityType connexity=CONNEXITY_4)
Definition: vpImageMorphology.h:219
VISP_NAMESPACE_NAME
Definition: vpEigenConversion.h:44