Hi, after spending quite some time with the new scale code, I have some doubts about the way that it is scaling down. So here's a patch that I am playing with at the moment: http://sven.gimp.org/misc/gimp-decimate.diff This patch applies against SVN trunk. It only changes the current behavior when scaling the image down. The strategy it applies is that for scale ratios < 0.5, the image is decimated using a simple box filter until it has a size that is only up to two times larger than the desired size. At this point the standard interpolation algorithm is used to scale the image to the final size. Of course for interpolation-none, no box filter is used, but the nearest pixel is chosen. I haven't done much testing with this patch yet, but overall it seems to give better results than the code that is currently in trunk (and it is a little bit faster). However, there are some corner cases like the Moire rings in http://svenfoo.org/scaletest/12-6.html where the results are worse. If someone is interested, please apply the patch and try some of the problematic images in the previous scaletest. Your feedback is very much appreciated. Sven _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
