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) 2013, OpenCV Foundation, all rights reserved. 14// Third party copyrights are property of their respective owners. 15// 16// Redistribution and use in source and binary forms, with or without modification, 17// are permitted provided that the following conditions are met: 18// 19// * Redistribution's of source code must retain the above copyright notice, 20// this list of conditions and the following disclaimer. 21// 22// * Redistribution's in binary form must reproduce the above copyright notice, 23// this list of conditions and the following disclaimer in the documentation 24// and/or other materials provided with the distribution. 25// 26// * The name of the copyright holders may not be used to endorse or promote products 27// derived from this software without specific prior written permission. 28// 29// This software is provided by the copyright holders and contributors "as is" and 30// any express or implied warranties, including, but not limited to, the implied 31// warranties of merchantability and fitness for a particular purpose are disclaimed. 32// In no event shall the Intel Corporation or contributors be liable for any direct, 33// indirect, incidental, special, exemplary, or consequential damages 34// (including, but not limited to, procurement of substitute goods or services; 35// loss of use, data, or profits; or business interruption) however caused 36// and on any theory of liability, whether in contract, strict liability, 37// or tort (including negligence or otherwise) arising in any way out of 38// the use of this software, even if advised of the possibility of such damage. 39// 40//M*/ 41 42 43#include "test_precomp.hpp" 44#include "opencv2/photo.hpp" 45#include <string> 46 47using namespace cv; 48using namespace std; 49 50static const double numerical_precision = 10.; 51 52TEST(Photo_Decolor, regression) 53{ 54 string folder = string(cvtest::TS::ptr()->get_data_path()) + "decolor/"; 55 string original_path = folder + "color_image_1.png"; 56 57 Mat original = imread(original_path, IMREAD_COLOR); 58 59 ASSERT_FALSE(original.empty()) << "Could not load input image " << original_path; 60 ASSERT_FALSE(original.channels()!=3) << "Load color input image " << original_path; 61 62 Mat grayscale, color_boost; 63 decolor(original, grayscale, color_boost); 64 65 Mat reference_grayscale = imread(folder + "grayscale_reference.png", 0 /* == grayscale image*/); 66 double error_grayscale = cvtest::norm(reference_grayscale, grayscale, NORM_L1); 67 EXPECT_LE(error_grayscale, numerical_precision); 68 69 Mat reference_boost = imread(folder + "boost_reference.png"); 70 double error_boost = cvtest::norm(reference_boost, color_boost, NORM_L1); 71 EXPECT_LE(error_boost, numerical_precision); 72} 73