[Octave-bug-tracker] [bug #46547] image package: canny detector in edge() should use LoG as first step

[Carnë Draug]

Update of bug #46547 (project octave):

                 Release:                   4.0.0 => other                  

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Follow-up Comment #8:

I'm attaching the results I get using the sample image on the original bug
report and no threshold values:


octave> I = imread ("~/Downloads/sample2.png");
octave> BW = edge (I, "Canny");
octave> imshow (BW)


The three figures are, from left to right:

1. the old result of edge before any change
2. with cset cb24795f0d8f which was to fix bug #46099
3. after the patch on comment #7

While 3 is a big improvement over 2 , it is still much behind what the
function did originally on its own.

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