https://bugs.kde.org/show_bug.cgi?id=408755

ch-ba...@outlook.com changed:

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                 CC|                            |ch-ba...@outlook.com

--- Comment #3 from ch-ba...@outlook.com ---
(In reply to Halla Rempt from comment #1)
> I guess that we'd best convert every layer to the image colorspace if the
> layer colorspace is different. I don't think tiff actually supports
> heterogenous images.

I have read the standard differently. The specification ICC.1:2010 (Profile
version 4.3.0.0) (http://color.org/icc_specs2.xalter) says:

"A  TIFF  file  may  contain  more  than  one  image,  and  so,  more  than 
one  IFD.  Each  IFD  may  have  its  own embedded profile. Note, however, that
Baseline TIFF readers are not required to read any IFDs beyond the first one."

So it should be able to assign different ICC color profiles to layers and
KRITA's TIFF export should embed individual ICC color profiles to all TIFF
pages, if assigned profiles differ. 

TIFF import should idealy respect individual color profiles for all pages. If
importing a multi-page TIFF where only the first page has an embedded color
profile, the TIFF import should apply this color profile to all TIFF pages
(layers).

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