19 Apr
2011
19 Apr
'11
9:19 a.m.
2011/4/19 Stéfan van der Walt <stefan@sun.ac.za>:
Looking at this further, I am not happy with the result of either scikits.image or scipy.ndimage:
http://mentat.za.net/refer/sobel.jpg
Compare this, e.g., to the wikipedia page here:
Apparently, neither of these routines like integer images as inputs (should be mentioned in the docs). Here's the output for float images: http://mentat.za.net/refer/sobel2.jpg Looking at that wikipedia page, it might be easy to add some of the other methods that are less sensitive to direction--we only need to update the masks. Regards Stéfan