how to write a function of image rotation by using the following f is the input image, (x0,y0) is the rotating center & a is the rotating angle. Return value is the output image (using IM & Bilinear interpolation);
omar90 0 Newbie Poster
rproffitt 2,662 "Nothing to see here." Moderator
Today I would not write this but use OpenCV or other libraries. Example at https://cppsecrets.com/users/204211510411798104971091085153504964103109971051084699111109/C00-OpenCV-to-rotate-an-image.php
Remember you didn't reveal enough to propose a solution. Also, we never used float to locate the image center.
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