The Decompose tool will decompose a colour image into a series of grey scale layers. This allows you to edit the image in many different colour models.

Decompose

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Go to Colours > Components > Decompose. This will bring up the Decompose Dialog.

The Decompose window looks like this:

 


Select the colour model that you wish to use from the drop down menu that matches the colour model you wish to split to.

Recompose

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When done editing your image, select Colours > Components > Recompose, to recompose the image back into an RGB Image. When saving to the XCF format, the layers will be preserved.

Channels · Levels

Channels · GIMP · Levels