Last modified: 2022-05-23.
Sharpening filter is achieved by
F + α(F − F * H)
where F is the image and H is the Gaussian kernel. A blurred image is attained by convolving F and H.
I.e. Sharpening filter is achieved by blurring the image then subtracting the “blur” out of the original image.
The assignment is posted on GitHub.