[Gimp-developer] jpeg quality factor.

[gg at catking.net]

On Sun, 08 Jul 2007 17:53:59 +0200, Robert L Krawitz <rlk at alum.mit.edu>  
wrote:

> What about the case where the original quality was 96 or 98, and it's
> resaved at the same quality level?  My quick test showed a slight
> decrease in file size, but probably very little in the way of image
> degradation.

Thanks,

I suspect that could be the result of some of the less important  
parameters getting a similar default, the encoding method (int/fp) or  
simply the algorithm efficiencies.

eg An earlier post indicated Jpeg:sampling-factor also changed from   
2x1,1x1,1x1 to 2x2,1x1,1x1.

/gg