131 void CountImageSizeMismatchAsPixelDifference(const Image& baseline,  in CountImageSizeMismatchAsPixelDifference()  argument
134   int w = std::min(baseline.w(), actual.w());  in CountImageSizeMismatchAsPixelDifference()
135   int h = std::min(baseline.h(), actual.h());  in CountImageSizeMismatchAsPixelDifference()
138   int max_w = std::max(baseline.w(), actual.w());  in CountImageSizeMismatchAsPixelDifference()
139   int max_h = std::max(baseline.h(), actual.h());  in CountImageSizeMismatchAsPixelDifference()
146 float PercentageDifferent(const Image& baseline, const Image& actual) {  in PercentageDifferent()  argument
147   int w = std::min(baseline.w(), actual.w());  in PercentageDifferent()
148   int h = std::min(baseline.h(), actual.h());  in PercentageDifferent()
154       if (baseline.pixel_at(x, y) != actual.pixel_at(x, y))  in PercentageDifferent()
159   CountImageSizeMismatchAsPixelDifference(baseline, actual, &pixels_different);  in PercentageDifferent()
163 float HistogramPercentageDifferent(const Image& baseline, const Image& actual) {  in HistogramPercentageDifferent()  argument
168   int w = std::min(baseline.w(), actual.w());  in HistogramPercentageDifferent()
169   int h = std::min(baseline.h(), actual.h());  in HistogramPercentageDifferent()
176       ++baseline_histogram[baseline.pixel_at(x, y)];  in HistogramPercentageDifferent()
193   CountImageSizeMismatchAsPixelDifference(baseline, actual, &pixels_different);  in HistogramPercentageDifferent()