Reference

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orientation

No arguments

Description:

Compute the pointwise orientation of vector-valued pixels in selected images.

This command has a tutorial page.

Example of use:

$ gmic image.jpg +orientation +norm[-2] negate[-1] mul[-2] [-1] reverse[-2,-1]
Command: image.jpg +orientation +norm[-2] negate[-1] mul[-2] [-1] reverse[-2,-1]
Command: image.jpg +orientation +norm[-2] negate[-1] mul[-2] [-1] reverse[-2,-1]
Command: image.jpg +orientation +norm[-2] negate[-1] mul[-2] [-1] reverse[-2,-1]