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

[Jean-Marc Liotier]

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




------- Additional Comments From jim liotier org  2007-09-07 15:52 -------
Canon cameras (and many other manufacturers) use 2:1 chroma subsampling when converting in-camera from RAW to JPEG, so the default setting should not be higher than 4:2:2 since a higher setting would merely increase file size with no gain of quality.

Additionally, 4:2:2 is widely considered as a medium quality JPEG so that could be a good default.