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gradient | Built-in command |
Arguments:
- { x | y | z }...{ x | y | z },_scheme or
- (no arg)
Description:
Compute the gradient components (first derivatives) of selected images.(equivalent to shortcut command g).
scheme can be { -1=backward | 0=centered | 1=forward | 2=sobel | 3=rotation-invariant (default) | 4=deriche | 5=vanvliet }.
(no arg) compute all significant components.
Default values:
scheme=0.
This command has a .
Example of use:
$ gmic image.jpg gradient
