Reference

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extract

Arguments:

Description:

Extract a list of coordinates or values from selected image, where

specified mathematical condition holds.
For N coordinates matching, result is a 1xNx1x4 image.

Default values:

output_type=0.

Example of use:

$ gmic sp lena +extract "norm(I)>128",3
Command: sp lena +extract "norm(I)>128",3
Command: sp lena +extract "norm(I)>128",3