# Butteraugli comparisons

This page compares Butteraugli against a number of image difference metrics. It shows examples of images where they disagree, to gain insight into what kind of differences those metrics are sensitive to.

Image pairs where Butteraugli and the other metric disagree the most are shown in mosaics, and the corresponding points are highlighted in the plots. The left half of the mosaic shows the green points in the plot, the points that Butteraugli ranks among the least different, but which the other metric ranks among the most different. The right half of the mosaic shows the orange points in the plot, which Butteraugli ranks among the most different, but which the other metric ranks among the least different.

Click “Toggle A/B” to flip between the images in a pair. Zooming in with Ctrl + Scrollwheel can help to see subtle differences.

## Butteraugli versus SSIM

Toggle A/B Butteraugli heatmap

## Butteraugli versus PSNR

Toggle A/B Butteraugli heatmap

## Butteraugli versus PSNRHVS-M

Toggle A/B Butteraugli heatmap

## Butteraugli versus MAE

Toggle A/B Butteraugli heatmap

## Butteraugli versus FUZZ

Toggle A/B Butteraugli heatmap

## Butteraugli versus NCC

Toggle A/B Butteraugli heatmap

## Butteraugli versus SSIMULACRA

Toggle A/B Butteraugli heatmap