Draw normal to edge detection image

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developer 2011-5-23

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评论： Mehri Mehrnia 2022-6-27

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Hello,

        I have an image that is the resulting image after detecting an edges, now i have to draw normal vector to the surfaces of the image .

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Wolfgang Schwanghart 2011-5-23

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You can compute surface normals using the function surfnorm. Then, you can use quiver to draw the vectors.

HTH, W.

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Mehri Mehrnia 2022-6-27

but surfnorm is for 3D , how to use it for the edges of the 2D shape?

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