[Octave-bug-tracker] [bug #46570] Image package: wrong result with edge

[Hartmut]

Follow-up Comment #10, bug #46570 (project octave):

Here is the promised new PATCH  (the file with V3 in it). It should be applied
on top of the current code version in the image repository.

A summary what this patch is supposed to do:
* clarify calculation with squared quantities (Sobel/Prewitt/Kirsch, Roberts)
* normalize the edge operator matrix (Sobel/Prewitt/Kirsch, Roberts)
* adapt calculation of auto threshold (Sobel/Prewitt/Kirsch, Roberts)
* keep edge strength before thinning step (Sobel/Prewitt/Kirsch, Roberts)
* use imfilter instead of conv2 (Roberts)
* add new tests for Prewitt and Roberts methods (Matlab compatible)

Please let me know if something is unclear or something misbehaves in this
patch.

(file #38057)
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Additional Item Attachment:

File name: FixCompatEdgePrewittRobertsSobelKirsch_V3.patch Size:5 KB


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