Re: Does editing compress my JPG:s?

[Larry Ewing <lewing novell com>]

But to be clear, this will only happen to the new version of the image.
The original will never go through this decompression/compression cycle.

--Larry

On Tue, 2007-01-09 at 10:31 +0100, Stephane Delcroix wrote:
> Editing imply decoding and recoding jpegs. The recoding is done with a
> fixed compression factor. Now that the quality guessing code is
> implemented and works fine, f-spot will recode all your modified jpegs
> with a very similar compression factor, resulting in filesizes of the
> same magnitude.
> Some filters already use that, but not all the editing parts...
> 
> regards
> 
> s
> 
> 
> On Tue, 2007-01-09 at 10:57 +0200, Antti Ahonen wrote:
> > I like to use these editing features of F-spot for all simple editing
> > I do, like cropping and minor color adjustments. Only now I noticed
> > that the size of an exported jpg is much smaller tahn the original.
> > 
> > If I have 2.8MB JPG, after editing (any editing, no cropping) I will
> > have about 600 KB image.
> > 
> > So what have been lost?
> > 
> > And why is the size of the file not visible in F-spot?
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