>To un warp [...] start from the middle of the image, leave that vertical
>line of pixels alone, then on the way out to the edges start slowly
>stretching vertically each vertial line of pixels in a geometric
>progressing of stretching [...].
Geometric progressing... along a circular or elliptical path I guess.
Quote:>[...] Almost because you should have been doing some horizontal
>stretching on your way to be precise.
Horizontal stretching at the edges? At first I guessed you would have to
stretch the center (or to compress the left and right edges). I use Live
Picture's PhotoVista (and their RealSpace screensaver) as a reference. That
software also stretches the edges. But the image looks distorted at the
edges, so I assume that they stretch too much.
Would you know about test images? Is there a set of pictures with a grid (or
similar) that I could stitch together and verify the equations?
Quote:>BTW, we did this on ZORK NEMESIS (game from activision) [...]
Yes, it is a wonderfull technique for these kinds of games.
Thank you for your very understandable explanation.
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