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Re: filmscanners: File format

On Fri, 30 Mar 2001 09:49:05 +0800  httin (httin@china.com) wrote:

> Did any one knows whether is there any informations/details loses when
> store in compressed JPG format in maximum quality 10 and while you keep
> opening and saving the same file many times? 

If you merely open and save a JPEG at the same compression, without editing, 
you lose nothing. If you edit, you lose information. It's impossible to 
quantify how much, since it varies depending on the image and what you do to 

> And how about the raw file TIFF?
Lossless, whatever you do, except for the distortions introduced by arithmetic 
during editing operations. Again, this is variable.


Tony Sleep
http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & 


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