1 /*M/////////////////////////////////////////////////////////////////////////////////////// 2 // 3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4 // 5 // By downloading, copying, installing or using the software you agree to this license. 6 // If you do not agree to this license, do not download, install, 7 // copy or use the software. 8 // 9 // 10 // License Agreement 11 // For Open Source Computer Vision Library 12 // 13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved. 14 // Copyright (C) 2009, Willow Garage Inc., all rights reserved. 15 // Third party copyrights are property of their respective owners. 16 // 17 // Redistribution and use in source and binary forms, with or without modification, 18 // are permitted provided that the following conditions are met: 19 // 20 // * Redistribution's of source code must retain the above copyright notice, 21 // this list of conditions and the following disclaimer. 22 // 23 // * Redistribution's in binary form must reproduce the above copyright notice, 24 // this list of conditions and the following disclaimer in the documentation 25 // and/or other materials provided with the distribution. 26 // 27 // * The name of the copyright holders may not be used to endorse or promote products 28 // derived from this software without specific prior written permission. 29 // 30 // This software is provided by the copyright holders and contributors "as is" and 31 // any express or implied warranties, including, but not limited to, the implied 32 // warranties of merchantability and fitness for a particular purpose are disclaimed. 33 // In no event shall the Intel Corporation or contributors be liable for any direct, 34 // indirect, incidental, special, exemplary, or consequential damages 35 // (including, but not limited to, procurement of substitute goods or services; 36 // loss of use, data, or profits; or business interruption) however caused 37 // and on any theory of liability, whether in contract, strict liability, 38 // or tort (including negligence or otherwise) arising in any way out of 39 // the use of this software, even if advised of the possibility of such damage. 40 // 41 //M*/ 42 43 #include "test_precomp.hpp" 44 #include <string> 45 46 using namespace cv; 47 using namespace std; 48 49 class CV_ConnectedComponentsTest : public cvtest::BaseTest 50 { 51 public: 52 CV_ConnectedComponentsTest(); 53 ~CV_ConnectedComponentsTest(); 54 protected: 55 void run(int); 56 }; 57 58 CV_ConnectedComponentsTest::CV_ConnectedComponentsTest() {} 59 CV_ConnectedComponentsTest::~CV_ConnectedComponentsTest() {} 60 61 void CV_ConnectedComponentsTest::run( int /* start_from */) 62 { 63 string exp_path = string(ts->get_data_path()) + "connectedcomponents/ccomp_exp.png"; 64 Mat exp = imread(exp_path, 0); 65 Mat orig = imread(string(ts->get_data_path()) + "connectedcomponents/concentric_circles.png", 0); 66 67 if (orig.empty()) 68 { 69 ts->set_failed_test_info( cvtest::TS::FAIL_INVALID_TEST_DATA ); 70 return; 71 } 72 73 Mat bw = orig > 128; 74 Mat labelImage; 75 int nLabels = connectedComponents(bw, labelImage, 8, CV_32S); 76 77 for(int r = 0; r < labelImage.rows; ++r){ 78 for(int c = 0; c < labelImage.cols; ++c){ 79 int l = labelImage.at<int>(r, c); 80 bool pass = l >= 0 && l <= nLabels; 81 if(!pass){ 82 ts->set_failed_test_info( cvtest::TS::FAIL_INVALID_OUTPUT ); 83 return; 84 } 85 } 86 } 87 88 if( exp.empty() || orig.size() != exp.size() ) 89 { 90 imwrite(exp_path, labelImage); 91 exp = labelImage; 92 } 93 94 if (0 != cvtest::norm(labelImage > 0, exp > 0, NORM_INF)) 95 { 96 ts->set_failed_test_info( cvtest::TS::FAIL_MISMATCH ); 97 return; 98 } 99 if (nLabels != cvtest::norm(labelImage, NORM_INF)+1) 100 { 101 ts->set_failed_test_info( cvtest::TS::FAIL_MISMATCH ); 102 return; 103 } 104 ts->set_failed_test_info(cvtest::TS::OK); 105 } 106 107 TEST(Imgproc_ConnectedComponents, regression) { CV_ConnectedComponentsTest test; test.safe_run(); } 108
