[digikam] [Bug 498076] Colors of .heic file are corrupted once a tag is assigned

[Maik Qualmann]

https://bugs.kde.org/show_bug.cgi?id=498076

--- Comment #11 from Maik Qualmann <metzpinguin at gmail.com> ---
The original HEIC file has two additional ICC profiles in addition to the Apple
ICC profile. These are not being adopted since we copied the ICC profiles with
ExifTool. I have not found any program in the Linux world that uses these
additional profiles. Let's see how we can fix this.

---- ICC_Profile ----
Profile Description             : Display P3
Profile Copyright               : Copyright Apple Inc., 2022
Media White Point               : 0.96419 1 0.82489
Red Matrix Column               : 0.51512 0.2412 -0.00105
Green Matrix Column             : 0.29198 0.69225 0.04189
Blue Matrix Column              : 0.1571 0.06657 0.78407
Red Tone Reproduction Curve     : (Binary data 32 bytes, use -b option to
extract)
Chromatic Adaptation            : 1.04788 0.02292 -0.0502 0.02959 0.99048
-0.01706 -0.00923 0.01508 0.75168
Blue Tone Reproduction Curve    : (Binary data 32 bytes, use -b option to
extract)
Green Tone Reproduction Curve   : (Binary data 32 bytes, use -b option to
extract)
---- ICC_Profile2 ----
Gray Tone Reproduction Curve    : (Binary data 14 bytes, use -b option to
extract)
---- ICC_Profile3 ----
A To B0                         : (Binary data 19478 bytes, use -b option to
extract)
B To A0                         : (Binary data 6412 bytes, use -b option to
extract)
Luminance                       : 0 100 0

Maik

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