On Wed, 13 Jan 1999 10:31:46 EST, Pauls0627@xxxxxxx jammed all night, and by
sunrise was overheard remarking:
> In a message dated 1/13/99 10:12:53 AM Eastern Standard Time, Scj9000@xxxxxxx
> writes:
> << The copying of the files from one medium to another would never worry
> me...but
> the original postee (Richard) indicated that each time opened, a measure of
> the image was lost. >>
> I obviously misunderstood your original post. Sorry. I think Richards comment
> should be read as each time a JPEG is opened and *re-saved* there is a loss.
Yup. And the degree of that loss is probably limited to some number of
generations. It may even vary by the encoder used (eg, not just the fact
you're rounding and filtering, but how much precision is used in the
process).
Early ATRAC encoders (used in the Sony MD audio format) suffered
profound generational loss in 4-5 generations. Today, you can go 20 or
more with far less distortion.
--
Dave Haynie | V.P. Technology, Met@box Infonet, AG | http://www.metabox.de
Be Dev #2024 | NB851 Powered! | Amiga 2000, 3000, 4000, PIOS One
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