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@tonytw1 tonytw1 commented Jan 29, 2026

When imgproxy is used in a newsroom setting, we encounter original images which are in CMYK colour space and have one of the standard print ICC profiles (like ISOnewspaper26v4) applied to them.

When these images are transformed back into sRGB with the default Relative intent, the results can be noticeably different from what the user expects.

TLDR. In an enviroment where there are alot of print media images in use, the Perceptual intent gives better results and we'd like to be able to set the intent parameter on the relevant vips icc calls.

This spike shows the points where we'd like to be able to set the intent and gives the visual effect we're looking for.
We can work towards promoting this override to a proper setting or parameter.

AUTO intent may also have a role to play here.

… the rendering of weird CMYK images with profiles like ISOnewspaper26v4.icc
@tonytw1 tonytw1 changed the title Intent spike Perceptual Intent spike Jan 30, 2026
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2 participants