[Webkit-unassigned] [Bug 203250] PNG images produced for some reftests have different hash even when the pixels inside the image are the same.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Oct 22 09:24:08 PDT 2019


--- Comment #1 from Carlos Alberto Lopez Perez <clopez at igalia.com> ---
On https://people.igalia.com/clopez/wkbug/203250/ I uploaded the two images produced for port GTK with this test.

I also have analysed the images with the imagemagick tool "identify -verbose" and then I can see there seems to be some different structures on both images, even some values like green, kurtosis, etc are different.

Pretty diff here: https://people.igalia.com/clopez/wkbug/203250/hsl-005-actual-expected.png.identify_diff.html

I'm not a expert in PNG images, not sure what that means.

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