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twirl

Arguments:

• _amplitude,_center_x[%],_center_y[%],_boundary_conditions={ 0=dirichlet | 1=neumann | 2=periodic | 3=mirror }

Description:

Apply twirl deformation on selected images.

Default values:

amplitude=1, center_x=center_y=50% and boundary_conditions=3.

Example of use:

Command: image.jpg twirl 0.6