73     ASSERT_FALSE(source.empty()) << "Could not load source image " << original_path1;  in TEST()
74     ASSERT_FALSE(destination.empty()) << "Could not load destination image " << original_path2;  in TEST()
75     ASSERT_FALSE(mask.empty()) << "Could not load mask image " << original_path3;  in TEST()
84     ASSERT_FALSE(reference.empty()) << "Could not load reference image " << reference_path;  in TEST()
104     ASSERT_FALSE(source.empty()) << "Could not load source image " << original_path1;  in TEST()
105     ASSERT_FALSE(destination.empty()) << "Could not load destination image " << original_path2;  in TEST()
106     ASSERT_FALSE(mask.empty()) << "Could not load mask image " << original_path3;  in TEST()
117     ASSERT_FALSE(reference.empty()) << "Could not load reference image " << reference_path;  in TEST()
136     ASSERT_FALSE(source.empty()) << "Could not load source image " << original_path1;  in TEST()
137     ASSERT_FALSE(destination.empty()) << "Could not load destination image " << original_path2;  in TEST()
138     ASSERT_FALSE(mask.empty()) << "Could not load mask image " << original_path3;  in TEST()
149     ASSERT_FALSE(reference.empty()) << "Could not load reference image " << reference_path;  in TEST()
166     ASSERT_FALSE(source.empty()) << "Could not load source image " << original_path1;  in TEST()
167     ASSERT_FALSE(mask.empty()) << "Could not load mask image " << original_path2;  in TEST()
175     ASSERT_FALSE(reference.empty()) << "Could not load reference image " << reference_path;  in TEST()
192     ASSERT_FALSE(source.empty()) << "Could not load source image " << original_path1;  in TEST()
193     ASSERT_FALSE(mask.empty()) << "Could not load mask image " << original_path2;  in TEST()
216     ASSERT_FALSE(source.empty()) << "Could not load source image " << original_path1;  in TEST()
217     ASSERT_FALSE(mask.empty()) << "Could not load mask image " << original_path2;  in TEST()
225     ASSERT_FALSE(reference.empty()) << "Could not load reference image " << reference_path;  in TEST()