From: andandgui isler on
how do i restore the image curvation because of the camera view. This effect also called keystoning effect and i want to fix my kestoned image.
From: ImageAnalyst on
Like I said in the other post you replied to:
"Take a snapshot of a known thing, like a grid - crossing stripes with
known distances between them. Then locate where the control points
(i.e. crossing points) actually are, and then specify where the points
*should* be. Then use maketform() to come up with a warping
transform. Then use tformfwd() to apply that transform to "fix up" a
bad image. "

The help should have examples for these functions.