Reference

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deriche

Built-in command

Arguments:

Description:

Apply Deriche recursive filter on selected images, along specified axis and with

specified standard deviation, order and boundary conditions.
boundary_conditions can be { 0=dirichlet | 1=neumann }.

Default values:

boundary_conditions=1.

This command has a tutorial page.

Examples of use:

• Example #1

$ gmic image.jpg deriche 3,1,x
Command: image.jpg deriche 3,1,x

• Example #2

$ gmic image.jpg +deriche 30,0,x deriche[-2] 30,0,y add
Command: image.jpg +deriche 30,0,x deriche[-2] 30,0,y add