Hi, On Wed, Jul 30, 2008 at 10:23 PM, David Gowers <00ai99@xxxxxxxxx> wrote: > The webpages are nearly finished, I'm checking them now. > > Some observations on the results of scaling: > > * The old code mistreated the left and top edges, resulting in a > duplication of up to 1 pixel on the left and top edge (and > corresponding omittal of a row of pixels on the right and bottom > edge). This looked slightly odd for upscaling, and very odd for > downscaling. The new code gives results that are more predictable and > more correct. > > * There is still a bug present in the new lanczos code which you can > easily see on the horse test image- the top row and left column of > pixels acquire junk pixels (there was only pure white in the source > image near there) . An example of the bug is attached. I hope this > helps isolate the cause of the bug. > (this bug is not present in the old code) OOPS! In fact, this bug is a reduced version of the same 'top+left edges stretched' bug in the old code. I've finished checking, and am just sending off the results and webpage to Sven now. David _______________________________________________ Gimp-developer mailing list Gimp-developer@xxxxxxxxxxxxxxxxxxxxxx https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-developer
