1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
| #include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include <time.h>
#include "GCoptimization.h"
#include "opencv/cv.h"
#include "opencv/highgui.h"
#include "opencv/ml.h"
using namespace cv;
#include <vector>
#include <iostream>
#include <limits>
using namespace std;
#define __PI 3.14159265
void graphcut(Mat& featureVec, Mat& im, int num_lables) {
Mat lables, centers;
cout << "Kmeans: #centers = " << num_lables << ",#tries = 2...";
kmeans(featureVec,
num_lables,
lables,
TermCriteria(TermCriteria::MAX_ITER + TermCriteria::EPS, 200, 0.0001),
2,
KMEANS_PP_CENTERS,centers);
cout << "Done" << endl;
for (int i = 0; i<num_lables; i++) {
cout << "center " << i << ": ";
for (int j = 0; j<centers.cols; j++) cout << centers.at<float>(i, j) << ",";
cout << endl;
}
#ifdef BTM_DEBUG
{
Mat _tmp = lables.reshape(1, im.rows);
Mat _tmpUC;
_tmp.convertTo(_tmpUC, CV_8UC1, 255.0 / (double)num_lables);
imshow("tmp", _tmpUC);
waitKey();
}
#endif
GCoptimizationGridGraph *gc = new GCoptimizationGridGraph(im.cols, im.rows, num_lables);
Mat _d(featureVec.size(), CV_32FC1);
for (int center = 0; center < num_lables; center++) {
_d.setTo(Scalar(0));
int count = 0;
for (int i = 0, ii = 0; i<featureVec.rows; i++) {
if (((int*)lables.data)[i] == center) {
float* dptr = (float*)(_d.data + _d.step * (ii++));
float* fptr = (float*)(featureVec.data + featureVec.step * i);
for (int j = 0; j<featureVec.cols; j++) {
dptr[j] = fptr[j];
}
count++;
}
}
Mat d = _d(Rect(0, 0, _d.cols, count));
Mat covar;
calcCovarMatrix(d, covar, Mat(), CV_COVAR_NORMAL + CV_COVAR_ROWS, CV_32F);
Mat icv = covar.inv();
Mat centerRepeat;
repeat(centers(Rect(0, center, centers.cols, 1)), featureVec.rows, 1, centerRepeat);
Mat diff = featureVec - centerRepeat; //difference between each pixel's value and it's center's value
Mat A = (diff*icv).mul(diff) * 0.5f;
for (int i = 0; i<A.rows; i++) {
float* _ptr = (float*)(A.data + A.step * i);
float cost = 0;
for (int j = 0; j<A.cols; j++) {
cost += _ptr[j];
}
int icost = MAX(0, (int)floor(-log(cost)));
gc->setDataCost(i, center + 1, icost);
}
}
//int *smooth = new int[num_lables*num_lables];
//int cost;
//for ( int l1 = 0; l1 < num_lables; l1++ )
// for (int l2 = 0; l2 < num_lables; l2++ ){
// cost = (l1-l2)*(l1-l2) <= 4 ? (l1-l2)*(l1-l2):4;
// //Mat _a = centers(Rect(0,l1,centers.cols,1)) - centers(Rect(0,l2,centers.cols,1));
// //float n = (float)norm(_a);
// //if(n==0) cost = 0;
// //else cost = (int)ceil(-log(n));
// smooth[l1+l2*num_lables] = cost;
// }
//Mat gk = getGaussianKernel(3,-1,CV_32F);
//gk = gk * gk.t();
//cv::Sobel(gk,gk,-1,1,0);
Mat gray; cvtColor(im, gray, CV_RGB2GRAY);
//imshow("tmp",gray); waitKey();
gray.convertTo(gray, CV_32FC1, 1.0f / 255.0f);
//imshow("tmp",gray); waitKey();
Mat grayInt, grayInt1;
{
Mat _tmp;
//filter2D(gray,_tmp,CV_32F,gk);
Sobel(gray, _tmp, -1, 1, 0); //sobel for dx
//Canny(gray,_tmp,50.0,150.0);
_tmp = abs(_tmp);
#ifdef BTM_DEBUG
imshow("tmp", _tmp); waitKey();
#endif
double maxVal, minVal;
minMaxLoc(_tmp, &minVal, &maxVal);
cv::log((_tmp - minVal) / (maxVal - minVal), _tmp);
_tmp = -_tmp * 0.35;
_tmp.convertTo(grayInt, CV_32SC1);
//grayInt = grayInt * 5;
//filter2D(gray,_tmp,CV_32F,gk.t());
Sobel(gray, _tmp, -1, 0, 1); //sobel for dy
//Canny(gray,_tmp,50.0,150.0);
_tmp = abs(_tmp);
#ifdef BTM_DEBUG
imshow("tmp", _tmp); waitKey();
#endif
minMaxLoc(_tmp, &minVal, &maxVal);
cv::log((_tmp - minVal) / (maxVal - minVal), _tmp);
_tmp = -_tmp * 0.35;
_tmp.convertTo(grayInt1, CV_32SC1);
//grayInt1 = grayInt1 * 5;
}
//// next set up spatially varying arrays V and H
//int *V = new int[featureVec.rows];
//int *H = new int[featureVec.rows];
//
//for ( int i = 0; i < featureVec.rows; i++ ){
// //H[i] = i+(i+1)%im.rows;
// //V[i] = i*(i+im.cols)%im.cols;
// H[i] = 1;
// V[i] = 1;
//}
Mat Sc = 10 * (Mat::ones(num_lables, num_lables, CV_32SC1) - Mat::eye(num_lables, num_lables, CV_32SC1));
gc->setSmoothCostVH((double*)(Sc.data), (double*)grayInt.data, (double*)grayInt1.data);
//gc->setSmoothCost((int*)(Sc.data));
while (true) {
printf("\nBefore optimization energy is %d", gc->compute_energy());
gc->expansion(1);// run expansion for 2 iterations. For swap use gc->swap(num_iterations);
printf("\nAfter optimization energy is %d", gc->compute_energy());
for (int i = 0; i < featureVec.rows; i++)
((int*)(lables.data + lables.step * i))[0] = gc->whatLabel(i);
{
Mat _tmp = lables.reshape(1, im.rows);
#ifdef BTM_DEBUG
{
Mat _tmpUC;
_tmp.convertTo(_tmpUC, CV_8UC1, 255.0 / (double)num_lables);
vector<Mat> chns; split(im, chns);
for (unsigned int ch = 0; ch<chns.size(); ch++)
{
chns[ch] = /*chns[ch] + */(_tmp == ch)/**0.5*/;
}
cv::merge(chns, _tmpUC);
imshow("tmp", _tmpUC);
int c = waitKey();
if (c == 'q') break;
}
#endif
}
}
delete gc;
//delete[] smooth;
//delete[] V;
//delete[] H;
//printf("%d\n",reshaped.rows);
}
void graphcut1(Mat& im, Mat& probs, Mat& dx, Mat& dy, int num_lables, Mat& lables = Mat()) {
GCoptimizationGridGraph gc(im.cols, im.rows, num_lables);
int N = im.cols*im.rows;
//probs = probs.reshape(1,N);
double log2 = log(1.3);
for (int i = 0; i<N; i++) {
double* ppt = probs.ptr<double>(i);
for (int l = 0; l<num_lables; l++) {
int icost = MAX(0, (int)floor(-log(ppt[l]) / log2));
gc.setDataCost(i, l, icost);
}
}
Mat Sc = 5 * (Mat::ones(num_lables, num_lables, CV_32SC1) - Mat::eye(num_lables, num_lables, CV_32SC1));
//int score[9] = {0,50,50,
// 50,0,50,
// 50,50,0};
gc.setSmoothCostVH((double*)(/*score*/Sc.data), (double*)dx.data, (double*)dy.data);
lables.create(N, 1, CV_8UC1);
while (true) {
printf("\nBefore optimization energy is %d\n", gc.compute_energy());
gc.expansion(1);// run expansion for 2 iterations. For swap use gc->swap(num_iterations);
printf("\nAfter optimization energy is %d\n", gc.compute_energy());
for (int i = 0; i < N; i++)
((uchar*)(lables.data + lables.step * i))[0] = gc.whatLabel(i);
{
Mat _tmp = lables.reshape(1, im.rows);
{
vector<Mat> chns(3);
for (unsigned int ch = 0; ch<chns.size(); ch++) chns[ch] = (_tmp == ch);
Mat _tmpUC; cv::merge(chns, _tmpUC);
imshow("tmp", _tmpUC);
cout << "Press 'q' to finish GC iterations" << endl;
int c = waitKey();
if (c == 'q') break;
}
}
}
}
int selectedRange = 0;
Range rs[6] = { Range(40, 164), Range(56, 149), Range(192, 241), Range(32, 185), Range(16, 169), Range(163, 206) };
bool draw = false;
void on_mouse(int event, int x, int y, int flags, void* param)
{
Mat* pm = (Mat*)param;
switch (event)
{
case CV_EVENT_LBUTTONDOWN:
{
rs[selectedRange * 2].start = min(max(0, y), pm->cols - 1);
rs[selectedRange * 2 + 1].start = min(max(0, x), pm->rows - 1);
cout << "Begin " << x << "," << y << endl;
draw = true;
}
break;
case CV_EVENT_RBUTTONDOWN:
break;
case CV_EVENT_LBUTTONUP:
{
rs[selectedRange * 2].end = min(max(0, y), pm->cols - 1);
rs[selectedRange * 2 + 1].end = min(max(0, x), pm->rows - 1);
cout << "End " << x << "," << y << endl;
draw = false;
}
break;
case CV_EVENT_RBUTTONUP:
break;
case CV_EVENT_MOUSEMOVE:
if (draw) {
Mat _tmp; (*((Mat*)param)).copyTo(_tmp);
if (selectedRange != 0)
rectangle(_tmp, Point(rs[1].start, rs[0].start), Point(rs[1].end, rs[0].end), Scalar(255, 0, 0), 2);
else
rectangle(_tmp, Point(rs[1].start, rs[0].start), Point(x, y), Scalar(255, 0, 0), 2);
if (selectedRange != 1)
rectangle(_tmp, Point(rs[3].start, rs[2].start), Point(rs[3].end, rs[2].end), Scalar(0, 255, 0), 2);
else
rectangle(_tmp, Point(rs[3].start, rs[2].start), Point(x, y), Scalar(0, 255, 0), 2);
imshow("tmp1", _tmp);
}
break;
}
}
void getEdges(Mat& gray, Mat& grayInt, Mat& grayInt1) {
Mat _tmp, _tmp1, gray32f, res;
gray.convertTo(gray32f, CV_32FC1, 1.0 / 255.0);
GaussianBlur(gray32f, gray32f, Size(11, 11), 0.75);
Sobel(gray32f, _tmp, -1, 1, 0, 3); //sobel for dx
//Sobel(gray32f,_tmp1,-1,1,0,3,-1.0); //sobel for -dx
//_tmp = abs(_tmp) + abs(_tmp1);
//_tmp.copyTo(_tmp,(_tmp > 0.0));
//_tmp1.copyTo(_tmp1,(_tmp1 > 0.0));
_tmp1 = abs(_tmp); // + (_tmp1 == 0.0);
_tmp1.copyTo(res, (_tmp1 > 0.2));
//res = -res + 1.0;
imshow("tmp", res);
double maxVal, minVal;
minMaxLoc(_tmp, &minVal, &maxVal);
cv::log(/*(_tmp - minVal) / (maxVal - minVal)*/res, _tmp);
_tmp = -_tmp * 0.17;
_tmp.convertTo(grayInt1, CV_32SC1);
Sobel(gray32f, _tmp, -1, 0, 1, 3); //sobel for dy
//Sobel(gray32f,_tmp1,-1,0,2,3,-1.0); //sobel for -dy
//_tmp = abs(_tmp) + abs(_tmp1);
//_tmp = (_tmp + _tmp1 + 2.0) / 4.0;
_tmp1 = abs(_tmp);
res.setTo(Scalar(0));
_tmp1.copyTo(res, (_tmp1 > 0.2));
//res = -res+1.0;
imshow("tmp1", res); waitKey();
minMaxLoc(_tmp, &minVal, &maxVal);
cv::log(/*(_tmp - minVal) / (maxVal - minVal)*/res, _tmp);
_tmp = -_tmp * 0.17;
_tmp.convertTo(grayInt, CV_32SC1);
}
void doEM3D(Mat& _im, Mat& probs, int num_models = 2, int num_gaussians = 3, bool useRanges = true) {
Mat im = _im;
vector<CvEM> model(num_models);
double CvEMParams; double ps(num_gaussians);
imshow("tmp1", im);
vector<Mat> samples(num_models);
while (true) {
if (useRanges) {
cout << "Define ranges (press <space> to continue)" << endl;
while (true) {
int c = waitKey();
if (c == ' ') break;
else selectedRange = c - '1';
cout << "Selected range: " << selectedRange << endl;
}
vector<Mat> splitted;
for (int i = 0; i<num_models; i++) {
Mat _tmp; im(rs[i * 2], rs[i * 2 + 1]).copyTo(_tmp);
_tmp.reshape(1, _tmp.rows*_tmp.cols).convertTo(samples[i], CV_32FC1, 1.0 / 255.0);
}
}
for (int i = 0; i<num_models; i++) {
model[i].clear();
model[i].train(samples[i], Mat(), ps, NULL);
cout << "Model " << i << " means: ";
const CvMat* m = model[i].get_means();
for (int g = 0; g<num_gaussians; g++) {
for (int c = 0; c<3; c++) cout << m->data.db[g * 3 + c] << ", ";
cout << endl;
}
cout << endl;
}
Mat out_lables(im.size(), CV_32FC1);
float _s[3];
Mat sample(1, 3, CV_32FC1, &_s);
probs = Mat(im.rows*im.cols, num_models, CV_64FC1);
{
Mat _tmp(1, 2, CV_64FC1);
for (int y = 0; y<im.rows; y++) {
uchar* imp = im.ptr<uchar>(y);
float* outl_ptr = out_lables.ptr<float>(y);
int probs_mult = y*im.cols;
for (int x = 0; x<im.cols; x++) {
float _label, maxv = std::numeric_limits<float>::min();
double p;
int probs_mult1 = x*num_models;
for (int i = 0; i<num_models; i++) {
float ps[3];
for (int c = 0; c<3; c++) {
_s[c] = ((float)imp[c + x * 3]) / 255.0f;
}
Mat X; sample.copyTo(X);
Mat xprob;
model[i].predict(X, &xprob);
double* w = model[i].get_weights()->data.db;
p = std::numeric_limits<double>::min();
for (int g = 0; g<num_gaussians; g++) p = max(p, w[g] * (double)(((float*)xprob.data)[g]));
probs.at<double>(probs_mult + x, i) = p;
if (p>maxv) { maxv = p; _label = (float)i; }
}
outl_ptr[x] = _label;
}
}
}
{
Mat _tmp(im.size(), CV_8UC1);
out_lables.convertTo(_tmp, CV_8UC1);
vector<Mat> vm(3); for (int i = 0; i<3; i++) vm[i] = (_tmp == i);
Mat out; merge(vm, out);
imshow("tmp", out);
if (num_models == 3)
imshow("tmp2", probs.reshape(num_models, im.rows));
}
cout << "Press any key for another round or 'q' to finish" << endl;
int c = waitKey();
if (c == 'q') break;
}
}
/**
* if useRanges is true, use the mouse to define ranges, else use the labeling from lables
* to train the GMM
*/
void doEM1D(Mat& _im, Mat& probs, int num_models = 2, bool useRanges = true, Mat& lables = Mat()) {
//Mat im; cvtColor(_im,im,CV_RGB2HSV);
Mat im = _im;
vector<vector<CvEM>> model(num_models);
for (int i = 0; i<num_models; i++) {
model[i] = vector<CvEM>(3);
}
double CvEMParams;
double ps(1);
imshow("tmp1", im);
vector<vector<Mat>> samples(num_models);
for (int i = 0; i<num_models; i++) samples[i] = vector<Mat>(3);
while (true) {
if (useRanges) {
cout << "Define ranges (press <space> to continue)" << endl;
while (true) {
int c = waitKey();
if (c == ' ') break;
else selectedRange = c - '1';
cout << "Selected range: " << selectedRange << endl;
}
vector<Mat> splitted;
for (int i = 0; i<num_models; i++) {
int cnt = 0;
Mat _tmp; im(rs[i * 2], rs[i * 2 + 1]).copyTo(_tmp);
//Mat __tmp = _tmp.reshape(1,_tmp.rows*_tmp.cols);
split(_tmp, splitted);
for (int c = 0; c<3; c++)
splitted[c].reshape(1, _tmp.rows*_tmp.cols).convertTo(samples[i][c], CV_32FC1, 1.0 / 255.0);
}
}
for (int i = 0; i<num_models; i++) {
for (int c = 0; c<3; c++) {
model[i][c].clear();
model[i][c].train(samples[i][c], Mat(), ps, NULL);
//m_probs[i] = model[i].get_probs();
}
cout << "Model " << i << " means: ";
for (int c = 0; c<3; c++) cout << model[i][c].get_means()->data.db[0] << ", ";
cout << endl;
}
Mat out_lables(im.size(), CV_32FC1);
float _s;
Mat sample(1, 1, CV_32FC1, &_s);
probs = Mat(im.rows*im.cols, num_models, CV_64FC1);
{
Mat _tmp(1, 2, CV_64FC1);
for (int y = 0; y<im.rows; y++) {
uchar* imp = im.ptr<uchar>(y);
float* outl_ptr = out_lables.ptr<float>(y);
int probs_mult = y*im.cols;
for (int x = 0; x<im.cols; x++) {
float _label, p, maxv = std::numeric_limits<float>::min();
int probs_mult1 = x*num_models;
for (int i = 0; i<num_models; i++) {
float ps[3];
for (int c = 0; c<3; c++) {
_s = ((float)imp[c + x * 3]) / 255.0f;
//model[i][c].predict(sample,&_tmp);
double mu = model[i][c].get_means()->data.db[0];
double x = (double)_s;
double sigma_sq = model[i][c].get_covs()[0]->data.db[0];
double _p = (1 / sqrt(2 * __PI*sigma_sq))*exp(-((x - mu)*(x - mu)) / (2 * sigma_sq));
ps[c] = (float)_p; //((double*)_tmp.data)[0];
}
p = ps[0] * ps[1] * ps[2];
//((double*)probs.data + probs_mult + probs_mult1 + i)[0] = p;
probs.at<double>(probs_mult + x, i) = p;
if (p>maxv) { maxv = p; _label = (float)i; }
}
outl_ptr[x] = _label;
}
}
}
{
Mat _tmp(im.size(), CV_8UC1);
out_lables.convertTo(_tmp, CV_8UC1);
vector<Mat> vm(3); for (int i = 0; i<3; i++) vm[i] = (_tmp == i);
Mat out; merge(vm, out);
imshow("tmp", out);
if (num_models == 3)
imshow("tmp2", probs.reshape(num_models, im.rows));
}
cout << "Press any key for another round or 'q' to finish" << endl;
int c = waitKey();
if (c == 'q') break;
}
}
int main(int argc, char** argv) {
Mat _im = imread("40406598_fd4e74d51c_d.jpg");
Mat im;
resize(_im, im, Size(_im.cols / 2, _im.rows / 2));
rs[4] = Range(0, im.rows - 1);
rs[5] = Range(0, im.cols - 1);
namedWindow("tmp");
namedWindow("tmp1");
cvSetMouseCallback("tmp1", on_mouse, &im);
namedWindow("tmp2");
Mat gray;
cvtColor(im, gray, CV_RGB2GRAY);
Mat probs;
Mat hsv_im; cvtColor(im, hsv_im, CV_BGR2HSV);
vector<Mat> v; split(hsv_im, v);
{
Mat gray32f; gray.convertTo(gray32f, CV_32FC1, 1.0 / 255.0);
Mat _tmp; Sobel(gray32f, _tmp, -1, 1, 1, 3);
Mat _tmp1; Sobel(gray32f, _tmp1, -1, 1, 1, 3, -1.0);
Mat(abs(_tmp) + abs(_tmp1)).convertTo(v[2], CV_8UC1, 255.0);
}
Mat combined; cv::merge(v, combined);
doEM3D(combined, probs, 3);
Mat dx, dy;
getEdges(gray, dx, dy);
Mat lables;
graphcut1(im, probs, dx, dy, 3, lables);
char* winnm[3] = { "tmp", "tmp1", "tmp2" };
for (int i = 0; i<3; i++)
{
Mat _tmp; im.copyTo(_tmp, lables == i);
imshow(string(winnm[i]), _tmp);
}
waitKey();
{
Mat _tmpLabels = lables.reshape(1, im.rows);
//find connected components in hair and face masks
vector<vector<Point>> contours;
for (int itr = 0; itr<2; itr++) {
Mat mask = (_tmpLabels == itr);
contours.clear();
cv::findContours(mask, contours, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_NONE);
//compute areas
vector<double> areas(contours.size());
for (unsigned int ai = 0; ai<contours.size(); ai++) {
Mat _pts(contours[ai]);
Scalar mp = mean(_pts);
//bias score according to distance from center face
areas[ai] = contourArea(Mat(contours[ai]))/* * bias.at<double>(mp.val[1],mp.val[0])*/;
}
//find largest connected component
double max; Point maxLoc;
minMaxLoc(Mat(areas), 0, &max, 0, &maxLoc);
//draw back on mask
_tmpLabels.setTo(Scalar(3), mask); //all unassigned pixels will have value of 3, later we'll use it
mask.setTo(Scalar(0)); //clear...
drawContours(mask, contours, maxLoc.y, Scalar(255), CV_FILLED);
_tmpLabels.setTo(Scalar(itr), mask);
}
lables.setTo(Scalar(2), lables == 3); //all 3's should be the "other label"
}
for (int i = 0; i<3; i++)
{
Mat _tmp; im.copyTo(_tmp, lables == i);
imshow(string(winnm[i]), _tmp);
}
waitKey();
return 0;
} |
