Member Avatar for ranwolf

Hello all,

I want to find the external edge of an object.

I used Canny, but it finds me any edge (inside edges as well)

When I play with the thresholds somtimes it pass skip the external edge but finds an internal one.

Solution anyone?

Thanks

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  • Latest Post Latest Post by Ezzaral
Member Avatar for Ezzaral

Perhaps using a Sobel operator and using the gradient direction would help. "Internal" and "external" have little meaning to a map of pixel intensities. Those are rational designations of your own making that you have to quantify and qualify if you want your program to make any distinction between them.

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