FWIW the following is from http://www.jpg.com/products/wizard.html It
implies that normally you would introduce artifacts when doing a mirror and
re-saving, but I think is claiming that with this technology you won't
degrade the image at all.
My guess is that it does have to clip to nearest 8 x 8 pixel block to do
this because the boundaries of these blocks would have to change following
a mirror, but this could be wrong.
Julian
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without introducing generational image loss normally associated with
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can recompress, rotate or mirror JPEG images without introducing
recompression artifacts!
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