[ITK] Canny edge detection filter results

[Joao Ascenso]

Hello,
I'm working on OCT images (DICOM volume) of the retina and trying to do the
segmentation of some layers.

After doing some noise reduction I'm applying the
CannyEdgeDetectionImageFilter, but the result give me thicker edges than
should be expected from Canny.

Changing thresholds influences the amount of edges detected but don't
improve this issue.

Anyone have came across similar problem? Any suggestion is welcome.

Thank you,

João Ascenso
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