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3rdparty/opencv-4.5.4/modules/imgproc/test/test_emd.cpp 3.17 KB
f4334277   Hu Chunming   提交3rdparty
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  /*M///////////////////////////////////////////////////////////////////////////////////////
  //
  //  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
  //
  //  By downloading, copying, installing or using the software you agree to this license.
  //  If you do not agree to this license, do not download, install,
  //  copy or use the software.
  //
  //
  //                        Intel License Agreement
  //                For Open Source Computer Vision Library
  //
  // Copyright (C) 2000, Intel Corporation, all rights reserved.
  // Third party copyrights are property of their respective owners.
  //
  // Redistribution and use in source and binary forms, with or without modification,
  // are permitted provided that the following conditions are met:
  //
  //   * Redistribution's of source code must retain the above copyright notice,
  //     this list of conditions and the following disclaimer.
  //
  //   * Redistribution's in binary form must reproduce the above copyright notice,
  //     this list of conditions and the following disclaimer in the documentation
  //     and/or other materials provided with the distribution.
  //
  //   * The name of Intel Corporation may not be used to endorse or promote products
  //     derived from this software without specific prior written permission.
  //
  // This software is provided by the copyright holders and contributors "as is" and
  // any express or implied warranties, including, but not limited to, the implied
  // warranties of merchantability and fitness for a particular purpose are disclaimed.
  // In no event shall the Intel Corporation or contributors be liable for any direct,
  // indirect, incidental, special, exemplary, or consequential damages
  // (including, but not limited to, procurement of substitute goods or services;
  // loss of use, data, or profits; or business interruption) however caused
  // and on any theory of liability, whether in contract, strict liability,
  // or tort (including negligence or otherwise) arising in any way out of
  // the use of this software, even if advised of the possibility of such damage.
  //
  //M*/
  
  #include "test_precomp.hpp"
  
  namespace opencv_test { namespace {
  
  class CV_EMDTest : public cvtest::BaseTest
  {
  public:
      CV_EMDTest();
  protected:
      void run(int);
  };
  
  
  CV_EMDTest::CV_EMDTest()
  {
  }
  
  void CV_EMDTest::run( int )
  {
      int code = cvtest::TS::OK;
      const double success_error_level = 1e-6;
      #define M 10000
      double emd0 = 2460./210;
      static float cost[] =
      {
          16, 16, 13, 22, 17,
          14, 14, 13, 19, 15,
          19, 19, 20, 23,  M,
          M ,  0,  M,  0,  0
      };
      static float  w1[] = { 50, 60, 50, 50 },
                    w2[] = { 30, 20, 70, 30, 60 };
      Mat _w1(4, 1, CV_32F, w1);
      Mat _w2(5, 1, CV_32F, w2);
      Mat _cost(_w1.rows, _w2.rows, CV_32F, cost);
  
      float emd = EMD( _w1, _w2, -1, _cost );
      if( fabs( emd - emd0 ) > success_error_level*emd0 )
      {
          ts->printf( cvtest::TS::LOG,
              "The computed distance is %.2f, while it should be %.2f\n", emd, emd0 );
          code = cvtest::TS::FAIL_BAD_ACCURACY;
      }
  
      if( code < 0 )
          ts->set_failed_test_info( code );
  }
  
  TEST(Imgproc_EMD, regression) { CV_EMDTest test; test.safe_run(); }
  
  }} // namespace
  /* End of file. */