Quote:
Originally Posted by Asmodian
Lanczos is also a spline based resize kernel, Lanczos3 and Spline36 are very similar, with Spline36 sharpening very slightly less than Lanczos3. Lanczos4 is slightly sharper than Spline64 too. It seems weird to compare 3 tap Lanczos to 4 tap spline when you could use 3 tap spline and/or 4 tap Lanczos, they also have the same computational requirements at the same number of taps. Due to this your distinction between them seems backwards (though I do not think they are very different either).
|
That explains why I used to get aliasing on subtitles when I was downscaling HD to SD with Lanczos years ago, so... yes, you're right.