"Roger Stafford" <email@example.com> wrote in message <firstname.lastname@example.org>... > "khoo" <email@example.com> wrote in message <firstname.lastname@example.org>... > > Hi all, currently i face the problem to find the rotation angle...i got one image is rotate in unknown angle compare with the original image, but i not have idea how to calculate the angle cause the angle is a variable angle..can anyone senior teach me here,...need it urgently...and i quite noob in image processing.. > > If you can identify and locate a number of corresponding points in the two images, you could use the Statistics Toolbox function 'procrustes' to find the least squares best rotation between them. > > Roger Stafford
izit u mean get the reference point in the image?? but how to get the reference point??