Shel Belinkoff wrote:

Well, I didn't change a thing, just opened and saved the file.  I just did
it again to be sure and every time the file was saved there was a loss of
the number of "unique" colors and the file size changed:

http://home.earthlink.net/~pdml-pics/jpgloss.jpg

Shel

Unless you choose the biggest file size option for the resave, my understanding is that jpeg will always chuck away what _it_ thinks is uneccessary.

mike




[Original Message]
From: Rob Studdert


I have no doubt about the validity of your observations however if a jpg

image
hasn't been transformed in any way it should be saved without loss of colour/detail. A transformation could also take the form of rendering an

image
to an alternate colour space.






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