[Digikam-devel] [Bug 195050] Color management doesn't work in thumbnails and view mode

[Matti Rintala]

https://bugs.kde.org/show_bug.cgi?id=195050





--- Comment #21 from Matti Rintala <bitti cs tut fi>  2009-09-01 09:39:55 ---
Here are come comments concerning the attacment I just created:

I'll send Marcel the actual image files for further study.

I took the same picture with Nikon D40 and D300 with several settings:
- Raw (nef) and jpg
- Camera set up to store image as sRGB and AdobeRGB
- I edited a raw image with Nikon Capture NX2 and stored it both as nef and jpg
with AdobeRGB as working space (NX2 embeds an ICC profile by default)

I compiled digikam from svn trunk and tried the files with it. Here are my
findings:

For jpg files, Digikam correctly recognised the jpg containing an ICC profile
(edited with Capture NX2). It also correctly recognised the exif color space
tag in the sRGB jpg. However, it did *not* recognise the AdobeRGB jpg, it gave
debug output: "No input profile: invalid Behavior flags 1048576". Looking at
exiftool output it seems that for AdobeRGB Nikon sets exif color space to
"Uncalibrated" and sets exif Interoperability Index to "R03 AdobeRGB".

For all raw files I got debug output: "No input profile: invalid Behavior flags
1048576". It seems that Digikam did not try to interpret exif color space or
interoperability index tags, nor did it recognise the embedded ICC profile in
raw file edited with Capture NX2.

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