If you wanted to change the code to produce a blurrier image, you would have to increase filter size to average over a wider range of pixels. This is a lot of work when the filter size is large (because of the N^2 factor in the total work per image).
If you wanted to change the code to produce a blurrier image, you would have to increase filter size to average over a wider range of pixels. This is a lot of work when the filter size is large (because of the N^2 factor in the total work per image).