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10.4: About Preview and rotated/mirrored images
Authored by: derrickbass on Dec 07, '05 04:28:49PM
This will result in some quality loss due to recompression. It turns out that JPEG, even though it is a lossy format, can be rotated and flipped losslessly. I don't know whether sips uses the lossless algorithm, but if not, the jpegtran program can do it. If you have fink, do
fink install libjpeg and then man jpegtran

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