Search found 2 matches

by adx
2010-11-15T08:28:27-07:00
Forum: Developers
Topic: Resizing artifacts with Lanczos
Replies: 23
Views: 63708

Re: Resizing artifacts with Lanczos

Wow. It'll take me some time to get my head around all this. And I thought I was fairly well obsessed with this sort of stuff (but very part time, I shouldn't really be doing it). Building IM under Windows to test out the new filtering is a bit beyond me, so I've made myself a nice new Ubuntu VM to ...
by adx
2010-11-14T17:40:09-07:00
Forum: Developers
Topic: Resizing artifacts with Lanczos
Replies: 23
Views: 63708

Re: Resizing artifacts with Lanczos

I just had to say - one thing that can provoke a resize filter is sharp-edged text: This situation (a step from 0 to full intensity) can't occur in "ordinary" sampled image data (properly bandlimited/antialised and not clipping highlights). Filters which work really close to the Nyquist limit (like ...