Action: Channel Diffs Duplicate red channel Set current channel To: channel Name: “Red<>Green” Apply Image With: calculation Source: green channel of merged layer Calculation: difference With Preserve Transparency Select green channel Duplicate current channel Set current channel To: channel Name: “Green<>Blue” Apply Image With: calculation Source: blue channel of merged layer Calculation: difference With Preserve Transparency Duplicate blue channel Set current channel To: channel Name: “Blue<>Red” Apply Image With: calculation Source: red channel of merged layer Calculation: difference With Preserve Transparency