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Old 02-04-2020, 09:21 PM   #70
NiLuJe
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Join Date: Jun 2010
Location: Paris, France
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@j.p.s: Ah, we may be hitting another fun specificity of my test image:

It grayscales fairly specifically differently depending on whether that was done linearly, or gamma-correct.

c.f., https://imagemagick.org/script/comma....php#intensity

The actual Forma_Gray.png linked earlier on GH was actually grayscaled via GIMP, which is not how I usually do it in my full pipeline, but is close enough .

EDIT: Added the GIMP grayscale, and my usual full pipeline result from the full-color one to a "perfect" H2O result.
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Last edited by NiLuJe; 02-04-2020 at 09:28 PM.
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