> I wonder if someone would be willing to help me off-list with a math > problem or can refer me to a more appropriate person/list to ask this > question: > > I have a photograph of a rectangle where the camera was slightly > off-center and not parallel to the plane of the rectangle, so in the > resulting photo, the rectangle is slightly distorted. I want to distort > the image by repositioning the corner points of the photograph so that > the interior rectangle is precisely positioned and sized. > > 1) I know the size of the photo, > 2) I know the coordinates of the rectangle's corners in the photo > 3) I know the coordinates where I want the rectangle's corners to be > after the transformation. > > I need to know the new coordinates of the photo's corners to achieve #3.
Just an addendum to my previous email: I didn't think it through properly. My note about the affine transformations said it all: I forgot perspective. I don't have time right now to think about the full answer, which may involve a 4x4 matrix (in order to take into account the third dimension). But there's probably an easier solution. Danny _______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
