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| //M*/ | |
| namespace opencv_test { namespace { | |
| class CV_WatershedTest : public cvtest::BaseTest | |
| { | |
| public: | |
| CV_WatershedTest(); | |
| ~CV_WatershedTest(); | |
| protected: | |
| void run(int); | |
| }; | |
| CV_WatershedTest::CV_WatershedTest() {} | |
| CV_WatershedTest::~CV_WatershedTest() {} | |
| void CV_WatershedTest::run( int /* start_from */) | |
| { | |
| string exp_path = string(ts->get_data_path()) + "watershed/wshed_exp.png"; | |
| Mat exp = imread(exp_path, IMREAD_GRAYSCALE); | |
| Mat orig = imread(string(ts->get_data_path()) + "inpaint/orig.png"); | |
| FileStorage fs(string(ts->get_data_path()) + "watershed/comp.xml", FileStorage::READ); | |
| if (orig.empty() || !fs.isOpened()) | |
| { | |
| ts->set_failed_test_info( cvtest::TS::FAIL_INVALID_TEST_DATA ); | |
| return; | |
| } | |
| CvSeq* cnts = (CvSeq*)fs["contours"].readObj(); | |
| Mat markers(orig.size(), CV_32SC1); | |
| markers = Scalar(0); | |
| IplImage iplmrks = cvIplImage(markers); | |
| vector<unsigned char> colors(1); | |
| for(int i = 0; cnts != 0; cnts = cnts->h_next, ++i ) | |
| { | |
| cvDrawContours( &iplmrks, cnts, cvScalar(Scalar::all(i + 1)), cvScalar(Scalar::all(i + 1)), -1, CV_FILLED); | |
| Point* p = (Point*)cvGetSeqElem(cnts, 0); | |
| //expected image was added with 1 in order to save to png | |
| //so now we subtract 1 to get real color | |
| if(!exp.empty()) | |
| colors.push_back(exp.ptr(p->y)[p->x] - 1); | |
| } | |
| fs.release(); | |
| const int compNum = (int)(colors.size() - 1); | |
| watershed(orig, markers); | |
| for(int j = 0; j < markers.rows; ++j) | |
| { | |
| int* line = markers.ptr<int>(j); | |
| for(int i = 0; i < markers.cols; ++i) | |
| { | |
| int& pixel = line[i]; | |
| if (pixel == -1) // border | |
| continue; | |
| if (pixel <= 0 || pixel > compNum) | |
| continue; // bad result, doing nothing and going to get error latter; | |
| // repaint in saved color to compare with expected; | |
| if(!exp.empty()) | |
| pixel = colors[pixel]; | |
| } | |
| } | |
| Mat markers8U; | |
| markers.convertTo(markers8U, CV_8U, 1, 1); | |
| if( exp.empty() || orig.size() != exp.size() ) | |
| { | |
| imwrite(exp_path, markers8U); | |
| exp = markers8U; | |
| } | |
| ASSERT_EQ(0, cvtest::norm(markers8U, exp, NORM_INF)); | |
| } | |
| TEST(Imgproc_Watershed, regression) { CV_WatershedTest test; test.safe_run(); } | |
| }} // namespace | |