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corrected angular difference check in MSER test (thanks to Pieter-Jan Busschaert for the patch)

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This commit is contained in:
Vadim Pisarevsky 2011-05-03 12:58:58 +00:00
parent dff9c0703f
commit 6432267de8
1 changed files with 122 additions and 112 deletions

234
modules/features2d/test/test_mser.cpp

@ -53,9 +53,9 @@ public:
CV_MserTest(); CV_MserTest();
protected: protected:
void run(int); void run(int);
int LoadBoxes(const char* path, vector<CvBox2D>& boxes); int LoadBoxes(const char* path, vector<CvBox2D>& boxes);
int SaveBoxes(const char* path, const vector<CvBox2D>& boxes); int SaveBoxes(const char* path, const vector<CvBox2D>& boxes);
int CompareBoxes(const vector<CvBox2D>& boxes1,const vector<CvBox2D>& boxes2, float max_rel_diff = 0.01f); int CompareBoxes(const vector<CvBox2D>& boxes1,const vector<CvBox2D>& boxes2, float max_rel_diff = 0.01f);
}; };
CV_MserTest::CV_MserTest() CV_MserTest::CV_MserTest()
@ -64,139 +64,149 @@ CV_MserTest::CV_MserTest()
int CV_MserTest::LoadBoxes(const char* path, vector<CvBox2D>& boxes) int CV_MserTest::LoadBoxes(const char* path, vector<CvBox2D>& boxes)
{ {
boxes.clear(); boxes.clear();
FILE* f = fopen(path,"r"); FILE* f = fopen(path,"r");
if (f==NULL) if (f==NULL)
{ {
return 0; return 0;
} }
while (!feof(f)) while (!feof(f))
{ {
CvBox2D box; CvBox2D box;
fscanf(f,"%f,%f,%f,%f,%f\n",&box.angle,&box.center.x,&box.center.y,&box.size.width,&box.size.height); fscanf(f,"%f,%f,%f,%f,%f\n",&box.angle,&box.center.x,&box.center.y,&box.size.width,&box.size.height);
boxes.push_back(box); boxes.push_back(box);
} }
fclose(f); fclose(f);
return 1; return 1;
} }
int CV_MserTest::SaveBoxes(const char* path, const vector<CvBox2D>& boxes) int CV_MserTest::SaveBoxes(const char* path, const vector<CvBox2D>& boxes)
{ {
FILE* f = fopen(path,"w"); FILE* f = fopen(path,"w");
if (f==NULL) if (f==NULL)
{ {
return 0; return 0;
} }
for (int i=0;i<(int)boxes.size();i++) for (int i=0;i<(int)boxes.size();i++)
{ {
fprintf(f,"%f,%f,%f,%f,%f\n",boxes[i].angle,boxes[i].center.x,boxes[i].center.y,boxes[i].size.width,boxes[i].size.height); fprintf(f,"%f,%f,%f,%f,%f\n",boxes[i].angle,boxes[i].center.x,boxes[i].center.y,boxes[i].size.width,boxes[i].size.height);
} }
fclose(f); fclose(f);
return 1; return 1;
} }
int CV_MserTest::CompareBoxes(const vector<CvBox2D>& boxes1,const vector<CvBox2D>& boxes2, float max_rel_diff) int CV_MserTest::CompareBoxes(const vector<CvBox2D>& boxes1,const vector<CvBox2D>& boxes2, float max_rel_diff)
{ {
if (boxes1.size() != boxes2.size()) if (boxes1.size() != boxes2.size())
return 0; return 0;
for (int i=0; i<(int)boxes1.size();i++) for (int i=0; i<(int)boxes1.size();i++)
{ {
float rel_diff; float rel_diff;
if (!((boxes1[i].angle == 0.0f) && (abs(boxes2[i].angle) < max_rel_diff))) if (!((boxes1[i].angle == 0.0f) && (abs(boxes2[i].angle) < max_rel_diff)))
{ {
rel_diff = abs(boxes1[i].angle-boxes2[i].angle)/abs(boxes1[i].angle); float angle_diff = (float)fmod(boxes1[i].angle - boxes2[i].angle, 180);
if (rel_diff > max_rel_diff) // for angular correctness, it makes no sense to use a "relative" error.
return i; // a 1-degree error around 5 degrees is equally bas as around 250 degrees.
} // in correct cases, angle_diff can now be a bit above 0 or a bit below 180
if (angle_diff > 90.0f)
{
angle_diff -= 180.0f;
}
rel_diff = (float)fabs(angle_diff);
if (rel_diff > max_rel_diff)
return i;
}
if (!((boxes1[i].center.x == 0.0f) && (abs(boxes2[i].center.x) < max_rel_diff))) if (!((boxes1[i].center.x == 0.0f) && (abs(boxes2[i].center.x) < max_rel_diff)))
{ {
rel_diff = abs(boxes1[i].center.x-boxes2[i].center.x)/abs(boxes1[i].center.x); rel_diff = abs(boxes1[i].center.x-boxes2[i].center.x)/abs(boxes1[i].center.x);
if (rel_diff > max_rel_diff) if (rel_diff > max_rel_diff)
return i; return i;
} }
if (!((boxes1[i].center.y == 0.0f) && (abs(boxes2[i].center.y) < max_rel_diff))) if (!((boxes1[i].center.y == 0.0f) && (abs(boxes2[i].center.y) < max_rel_diff)))
{ {
rel_diff = abs(boxes1[i].center.y-boxes2[i].center.y)/abs(boxes1[i].center.y); rel_diff = abs(boxes1[i].center.y-boxes2[i].center.y)/abs(boxes1[i].center.y);
if (rel_diff > max_rel_diff) if (rel_diff > max_rel_diff)
return i; return i;
} }
if (!((boxes1[i].size.width == 0.0f) && (abs(boxes2[i].size.width) < max_rel_diff))) if (!((boxes1[i].size.width == 0.0f) && (abs(boxes2[i].size.width) < max_rel_diff)))
{ {
rel_diff = abs(boxes1[i].size.width-boxes2[i].size.width)/abs(boxes1[i].size.width); rel_diff = abs(boxes1[i].size.width-boxes2[i].size.width)/abs(boxes1[i].size.width);
if (rel_diff > max_rel_diff) if (rel_diff > max_rel_diff)
return i; return i;
} }
if (!((boxes1[i].size.height == 0.0f) && (abs(boxes2[i].size.height) < max_rel_diff))) if (!((boxes1[i].size.height == 0.0f) && (abs(boxes2[i].size.height) < max_rel_diff)))
{ {
rel_diff = abs(boxes1[i].size.height-boxes2[i].size.height)/abs(boxes1[i].size.height); rel_diff = abs(boxes1[i].size.height-boxes2[i].size.height)/abs(boxes1[i].size.height);
if (rel_diff > max_rel_diff) if (rel_diff > max_rel_diff)
return i; return i;
} }
} }
return -1; return -1;
} }
void CV_MserTest::run(int) void CV_MserTest::run(int)
{ {
string image_path = string(ts->get_data_path()) + "mser/puzzle.png"; string image_path = string(ts->get_data_path()) + "mser/puzzle.png";
IplImage* img = cvLoadImage( image_path.c_str()); IplImage* img = cvLoadImage( image_path.c_str());
if (!img) if (!img)
{ {
ts->printf( cvtest::TS::LOG, "Unable to open image mser/puzzle.png\n"); ts->printf( cvtest::TS::LOG, "Unable to open image mser/puzzle.png\n");
ts->set_failed_test_info(cvtest::TS::FAIL_MISSING_TEST_DATA); ts->set_failed_test_info(cvtest::TS::FAIL_MISSING_TEST_DATA);
return; return;
} }
CvSeq* contours; CvSeq* contours;
CvMemStorage* storage= cvCreateMemStorage(); CvMemStorage* storage= cvCreateMemStorage();
IplImage* hsv = cvCreateImage( cvGetSize( img ), IPL_DEPTH_8U, 3 ); IplImage* hsv = cvCreateImage( cvGetSize( img ), IPL_DEPTH_8U, 3 );
cvCvtColor( img, hsv, CV_BGR2YCrCb ); cvCvtColor( img, hsv, CV_BGR2YCrCb );
CvMSERParams params = cvMSERParams();//cvMSERParams( 5, 60, cvRound(.2*img->width*img->height), .25, .2 ); CvMSERParams params = cvMSERParams();//cvMSERParams( 5, 60, cvRound(.2*img->width*img->height), .25, .2 );
cvExtractMSER( hsv, NULL, &contours, storage, params ); cvExtractMSER( hsv, NULL, &contours, storage, params );
vector<CvBox2D> boxes; vector<CvBox2D> boxes;
vector<CvBox2D> boxes_orig; vector<CvBox2D> boxes_orig;
for ( int i = 0; i < contours->total; i++ ) for ( int i = 0; i < contours->total; i++ )
{ {
CvContour* r = *(CvContour**)cvGetSeqElem( contours, i ); CvContour* r = *(CvContour**)cvGetSeqElem( contours, i );
CvBox2D box = cvFitEllipse2( r ); CvBox2D box = cvFitEllipse2( r );
box.angle=(float)CV_PI/2-box.angle; box.angle=(float)CV_PI/2-box.angle;
boxes.push_back(box); boxes.push_back(box);
} }
string boxes_path = string(ts->get_data_path()) + "mser/boxes.txt"; string boxes_path = string(ts->get_data_path()) + "mser/boxes.txt";
string calc_boxes_path = string(ts->get_data_path()) + "mser/boxes.calc.txt";
if (!LoadBoxes(boxes_path.c_str(),boxes_orig))
{ if (!LoadBoxes(boxes_path.c_str(),boxes_orig))
SaveBoxes(boxes_path.c_str(),boxes); {
ts->printf( cvtest::TS::LOG, "Unable to open data file mser/boxes.txt\n"); SaveBoxes(boxes_path.c_str(),boxes);
ts->set_failed_test_info(cvtest::TS::FAIL_MISSING_TEST_DATA); ts->printf( cvtest::TS::LOG, "Unable to open data file mser/boxes.txt\n");
return; ts->set_failed_test_info(cvtest::TS::FAIL_MISSING_TEST_DATA);
} return;
}
const float dissimularity = 0.01f; const float dissimularity = 0.01f;
int n_box = CompareBoxes(boxes_orig,boxes,dissimularity); int n_box = CompareBoxes(boxes_orig,boxes,dissimularity);
if (n_box < 0) if (n_box < 0)
{ {
ts->set_failed_test_info(cvtest::TS::OK); ts->set_failed_test_info(cvtest::TS::OK);
} }
else else
{ {
ts->set_failed_test_info(cvtest::TS::FAIL_BAD_ACCURACY); SaveBoxes(calc_boxes_path.c_str(), boxes);
ts->printf( cvtest::TS::LOG, "Incorrect correspondence in %d box\n",n_box); ts->set_failed_test_info(cvtest::TS::FAIL_BAD_ACCURACY);
} ts->printf( cvtest::TS::LOG, "Incorrect correspondence in box %d\n",n_box);
}
cvReleaseMemStorage(&storage); cvReleaseMemStorage(&storage);
cvReleaseImage(&hsv); cvReleaseImage(&hsv);
cvReleaseImage(&img); cvReleaseImage(&img);
} }
TEST(Features2d_MSER, regression) { CV_MserTest test; test.safe_run(); } TEST(Features2d_MSER, regression) { CV_MserTest test; test.safe_run(); }