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abscut

Built-in command

Arguments:

• min,_max,_offset

Description:

Cut the absolute values of pixel values in selected images, with specified range.

For each value i of the selected images, compute cut(abs(i) + offset,min,max)*sign(i).
Thus, it only clamp/shift the absolute value of each pixel value while keeping its sign unchanged.

Default values:

max=inf and offset=0.

Example of use:

Command: 300,1,1,1,'cos(20*x/w)' +abscut 0,0.5 append c display_graph 400,300