[filmscanners] RE: JPEG Lossless mirror?

["Mark Otway" <mark@otway.com>]

>> This isn't so, Mark.  While you're editing an image is PS, 
>> no jpeg processing is performed. Your'e perfectly safe.  The 
>> jpeg processing occurs only when you save the image to a jpg 
>> file, and even then virtually no further degradation takes 
>> place, believe it or not (you can test this yourself).

I know the encoding only takes place when the image is saved in PS (as
opposed to when it's manipulated). But since the act of re-encoding
results in some data loss, if I can perform these simple tranformations
(flip) without doing so then it's obviously preferable.

Mark

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