Is possible to create segments by color pallete?

[GioM]

Hi all, is it possible to select all the voxels of an image by specifying a color?
I have some CT maps of the brain that highlight the areas with different colors, the simplest one has only one color per map.
This is an example.

Is there any integrated Slicer tool or exention (or maybe a Python script) to do so?
Thanks in advice.

[lassoan (Andras Lasso)]

All segment editor effects currently use a single channel. If you want to select a region based on exact RGB match then you can use a simple Python command as shown in this example in the script repository.