Hi Fatemeh
As I mentioned you should use 'Gradient magnitude' (rather than
'Directional gradient') in the Horizontal gradient dialog box.
Actually this feature was added only less than 2 years ago (or even
less) if I'm not mistaken. If you have an old version, it might not
have the 'Gradient magnitude' option.
Best,
Michal
Quoting fatemeh <[email protected]>:
Hi Michal
in this way I must insert direction of gradient!
But total horizontal derivative is root of sum Square horizontal
derivative in x and y direct!
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