Legacy ImageMagick Discussions Archive

Do you have any comparisons of the tap filter vs what you feel is the best that Imagemagick can do that shows it is superior? If you have any tests, please provide them. Here's the kernel comparison: http://svn.int64.org/viewvc/int64/resamplehq/doc/kernels.html The difference is subtle. Lanczos is ...

I know that (and spline w/ custom defined lobe count is exactly what I want to use on IM), but the result I get is full of ringings and halos if I use high lobe count Lanczos (2-lobed one is the safest IMHO). When I resize an image on IM, I rather use -distort resize with the default Robidoux filter...

Yes, for 2-8 taps (16-256 samples), although the page is written in Japanese. http://www.geocities.jp/w_bean17/spline.html Google translated version: https://translate.googleusercontent.com/translate_c?depth=1&nv=1&rurl=translate.google.co.jp&sp=nmt4&tl=en&u=http://www.geocities....

Hello devs, Is there any plan to add high tap (lobe) count Spline filters and the EWA version of them? Spline filter I refer here is the one you can find in mpv (Spline36/64) or you can use with ffmpeg's -vf zscale. I think a typical result of spline36/64 resizing is as sharp as Lanczos and has less...