XnView Software

I have a display with a color profile and Xnview with the General > ICC settings.

I'm comparing some images (with embedded sRGB IEC61966-2.1) between XnView and Photoshop.
I've noticed that the images don't exactly match, and the difference is more evident in the blacks.

It would be helpful to know what XnView internally uses for color conversions. LCMS?
Also, is black point compensation used during color conversions?

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XnView MP 1.4.0
Windows 10 build 19045

karnak wrote: Mon Jan 02, 2023 6:29 pm It would be helpful to know what XnView internally uses for color conversions. LCMS?

yes

Thanks for the reply.

I understand that one should not expect an exact match because Photoshop uses a different color engine.

However, I did a few more tests, and I think you might have set the LCMS Black Point Compensation (BPC) flag to disable because when I disable it in Photoshop, the images match almost exactly to XnView.

Perhaps you could consider exposing the BPC setting in the General > ICC tab near the Rendering Intent dropdown.

See issue for current status and some details.

I've noticed under macOS, either with ICC disabled, or ICC monitor selected I get oversaturated images because my monitor is a wide gammut one. I don't have the issue in preview, or affinity photo etc...

Is this bug related and is it fixed in 1.4.1? Or should I open a new bug report?

This problem is supposed to be fixed in XnView MP 1.4.1. Please check and confirm the bug fix here.

I confirm that Black Point Compensation is working correctly.
Thank you for adding this setting to the UI!

xnview wrote: Mon Jan 16, 2023 12:32 pm This problem is supposed to be fixed in XnView MP 1.4.1. Please check and confirm the bug fix here.

Oops, didn't see this reply when making a thread.
Unfortunately it does not fix it for me. Using 1.4.1