Autolevels

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lsolesen
Posts: 28
Joined: Sat Mar 08, 2008 7:17 am

Autolevels

Post by lsolesen » Thu Mar 20, 2008 10:38 pm

I just used autolevels and compared it to the autolevels from GIMP 2.4.5. They do not match. The images gets a bit lighter and gets a bit more contrast when using GIMP. How is it decided how to do the autolevels? And is autolevel lossless on jpg files?

lsolesen
Posts: 28
Joined: Sat Mar 08, 2008 7:17 am

Post by lsolesen » Thu Mar 20, 2008 10:41 pm

It seems the results are closer when also doing autocontrast in xnview. But I am still interested as to how the transformation is done.


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