Testing mask-transformed-image with image target (dev offset 0) 12 pixels differ (with maximum difference of 1) from reference image But perceptual diff finds no visually discernible difference. Accepting result. OUTPUT: output/mask-transformed-image.image.argb32.out.png TEST: mask-transformed-image TARGET: image FORMAT: argb32 OFFSET: 0 SIMILAR: 0 RESULT: PASS Testing mask-transformed-image with image target (dev offset 0) 12 pixels differ (with maximum difference of 1) from reference image But perceptual diff finds no visually discernible difference. Accepting result. OUTPUT: output/mask-transformed-image.image.rgb24.out.png TEST: mask-transformed-image TARGET: image FORMAT: rgb24 OFFSET: 0 SIMILAR: 0 RESULT: PASS