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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