[Digikam-devel] [Bug 149578] libjpeg JPEG subsampling setting is not user-controlable

[Gilles Caulier]

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http://bugs.kde.org/show_bug.cgi?id=149578         




------- Additional Comments From caulier.gilles gmail com  2007-09-07 14:20 -------
Jean Marc,

I have take a look into Gimp source code. following chroma subsampling options are available :

2x2 1x1 1x1
2x1 1x1 1x1
1x1 1x1 1x1

Following WikiPedia page : http://en.wikipedia.org/wiki/Chroma_subsampling

Where are these options ??? This is another non homogenous stuff in Gimp...

Also, "2x2 1x1 1x1" and others are not really easy to understand for common users. Something like "no subsampling" (best quality), "medium subsampling"  (medium quality), and  "high subsampling" (low quality) is more user friendly.

I willpatch svn to provide 3 options from gimp, but using ratio subsampling value as option label. I'm waiting your tips to improve this point...

Gilles Caulier