select_color
Arguments:
- tolerance[%]>=0,col1,...,colN
Description:
Select pixels with specified color in selected images.
This command has a tutorial page.
Example of use:
$ gmic
image.jpg +select_color 40,204,153,110

Command:
image.jpg +select_color 40,204,153,110

Command:
image.jpg +select_color 40,204,153,110