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

[Milan Knizek]

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





--- Comment #27 from Milan Knizek <knizek volny cz>  2009-09-02 13:45:06 ---
(In reply to comment #26)
I wouldn't want to have to flush the db
> or thumbnail cache every time I switch monitors...

As Marcel explained, it should be sufficient to restart digiKam to refresh the
colour managed pixmaps in the cache from thumbnails db.

> How expensive is it to keep thumbnails in the original colorspace, and convert
> them on the fly as done for the full images?

As discussed above, it seems to be okay to have thumbnails db in sRGB only and
create the cached thumbnails as colour managed pixmaps in the colour space of
the current monitor.

We would potentially loose some out of gamut colours, but for thumbnails, this
should not be a hot issue. (E.g. the original image is ProPhoto RGB, thumbnail
is sRGB, monitor is Adobe RGB - the colours of thumbnail would be colour
managed for AdobeRGB, but we would loose any colour outside sRGB gamut but
within ProPhoto RGB gamut.)

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