Stretch for diff image

Open astrofrog opened this issue 2 years ago • 0 comments

In some cases such as:

https://output.circle-artifacts.com/output/job/65b009f4-252a-490f-a3da-61cb064aa4e0/artifacts/0/results/fig_comparison.html

from https://github.com/astropy/astropy/issues/15029 - the diff doesn't show any changes, but downloading it and stretching it shows a couple of pixels different. I wonder if we could stretch the PNGs to maximize the use of the available dynamic range to make it easier to see what is going on in subtle cases like this?

Jul 06 '23 08:07 astrofrog