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| From: | Carnë Draug |
| Subject: | [Octave-bug-tracker] [bug #46099] image package: edge(I, 'canny') gives very bad quality results |
| Date: | Fri, 04 Dec 2015 20:24:45 +0000 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0 Iceweasel/38.4.0 |
Follow-up Comment #10, bug #46099 (project octave):
> As reason for this I found bug #45568 "imfilter incompatible to MATLAB for
even filter width".
If I remember correctly, that bug only happens when using "corr" method of
imfilter (default). It should disappear if you use the "conv" option which
would give the same results if your filter is symmetric. I have found that
issue before and my solution is to skip imfilter altogether and use padarray
and convn myself. That's one extra line of code. It should also be faster and
will make it easier to support ND input in the future. May not be suitable
for your case.
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