On Wed, 11 Jul 2007, David Savage wrote: > PS is OK for small distortions, but it's not so good for correcting > those inherent to fisheye lenses. > Sorry folks...One of my pet peeves here....
Fisheye lenses are no more distorted than regular rectilinear. It's just a different type of projection used to map a spherical real-world representation onto a planar object. It just so happens that under most circumstances (read: non-extreme wide angle and towards the center), the "straight-lines map to straight-lines" of a rectiliear projection appear more natural to people. If you look at an extreme wideangle rectilinear projection, I can assure you that it looks more distorted than a fisheye projection. I'm not saying that there's not a use for coordinate transformations, just that calling fisheye lenses distorted and rectilinear not distorted is distorted... ;-) -Cory -- ************************************************************************* * Cory Papenfuss, Ph.D., PPSEL-IA * * Electrical Engineering * * Virginia Polytechnic Institute and State University * ************************************************************************* -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net