I wonder why the Gaussian filter (from CS 194) is smoother and better in so many contexts than this box filter. I'm curious to see if there's a way to find the smoothest possible 3 by 3 filter for purposes in antialiasing. Is it possible that the Box filter is better? Are there contexts where it's so much faster to do it that it's not worth doing a Gaussian filter?
armaangoel78
@Messier-16, I could be way wrong, but I figure there's no such thing as "the smoothest" filter since it depends highly on the image. Your question is interesting though, I wonder if there is a dataset of "average" images, that can be used to benchmark which filtering techniques are best for most images.
I wonder why the Gaussian filter (from CS 194) is smoother and better in so many contexts than this box filter. I'm curious to see if there's a way to find the smoothest possible 3 by 3 filter for purposes in antialiasing. Is it possible that the Box filter is better? Are there contexts where it's so much faster to do it that it's not worth doing a Gaussian filter?
@Messier-16, I could be way wrong, but I figure there's no such thing as "the smoothest" filter since it depends highly on the image. Your question is interesting though, I wonder if there is a dataset of "average" images, that can be used to benchmark which filtering techniques are best for most images.