Originally posted by: Zeromancer
What is the differences in yours vs his?
Or they exactly alike?

The main difference is that I just used a bit of maths together with AviSynth's bulit-in resize filters to kludge together a custom function; trbarry is actually clever enough to code his own filters.

I was going to try his filter out last night but didn't get round to it; it looks like it can do exactly the same thing, but on a mathematical curve rather than a linear approximation. It also seems much more tweakable than mine, it will do different resolutions and warp vertically, too.

However, at least my function works in YV12 colorspace!

I would love to be able to program for myself (and take on Laserman's colour grading idea). In the past I've learned BASIC and FORTRAN 77, so it probably wouldn't be too hard for me to learn C++ or whatever people use these days. It's just finding the time to do so.