How to compute edge map from the image gradients?

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D.Regan
D.Regan il 10 Ott 2017
Risposto: Constantino Carlos Reyes-Aldasoro il 4 Ott 2022
I need edge map like canny output from image gradients. I got image gradients from imgradient of matlab. Then how to find the edge map from?

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Constantino Carlos Reyes-Aldasoro
It would help if you could add figures illustrating your problem.

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