1. Home


IMUNSHARPEN(r;t;a;s) applies an unsharp mask to the RGB image in matrix r: this first applies a Gaussian blur with standard deviation s; it then finds the difference between pixels in the blurred image and in the original and, if this is greater than t in each channel, it adds the amount specified by scalar a multiplied by the difference from the original value.

Updated on December 4, 2017

Was this article helpful?