On Sun, Apr 21, 2013 at 11:05 AM, Johannes Schönberger <jschoenberger@demuc.de> wrote:

Basically, "filter" is a very universal term that may be used for lots of image processing related tasks… On the one hand, edge operators probably fit well into the feature package, on the other hand Tony just used the very common term

> edge filters

So, I am +-0 on this…

I'd agree that `sobel`, `prewitt`, etc. are filters, but I think `canny` is much less of a traditional filter. That said, it's not a big deal either way.

-Tony