62     string original_path = folder + "lena_noised_gaussian_sigma=10.png";  in TEST()  local
65     Mat original = imread(original_path, IMREAD_GRAYSCALE);  in TEST()
68     ASSERT_FALSE(original.empty()) << "Could not load input image " << original_path;  in TEST()
82     string original_path = folder + "lena_noised_gaussian_sigma=10.png";  in TEST()  local
85     Mat original = imread(original_path, IMREAD_COLOR);  in TEST()
88     ASSERT_FALSE(original.empty()) << "Could not load input image " << original_path;  in TEST()
111 …  string original_path = format("%slena_noised_gaussian_sigma=20_multi_%d.png", folder.c_str(), i);  in TEST()  local
112         original[i] = imread(original_path, IMREAD_GRAYSCALE);  in TEST()
113         ASSERT_FALSE(original[i].empty()) << "Could not load input image " << original_path;  in TEST()
136 …  string original_path = format("%slena_noised_gaussian_sigma=20_multi_%d.png", folder.c_str(), i);  in TEST()  local
137         original[i] = imread(original_path, IMREAD_COLOR);  in TEST()
138         ASSERT_FALSE(original[i].empty()) << "Could not load input image " << original_path;  in TEST()