"sepideh tork" <firstname.lastname@example.org> wrote in message <email@example.com>... > I have a rotated image and I want to restore the original image, the rotated image is the horizontal tensile version of the original.(45dgre counterclockwise rotated) > I do not want to use the "imtransform" function and I have to write the code using both bilinear and nearest neighbor. But i dont know how?! ================================================== Then use imregister() instead. Since you know the angle, you can use the usual 2 by 2 sine, cosine transform if you want.