JuliaLang/julia — pull request #557 by stefan-k (2012-03-09 21:37:30+00:00)
Title: imthresh, ncc, ftshow, imgaussiannoise, fixed imfilter

conv2 doesn't work for imfilter, so I implemented the convolution directly in imfilter.

The other functions are just some small ones:
* imthresh: thresholding
* ncc: normalized cross correlation
* ftshow: displays fourier transformed image
* imgaussiannoise: adds gaussian noise to image