Action: LAB channels Duplicate first document Name: “LAB channels” Flatten Image Convert Mode To: Lab color mode Image Size Width: 25% With Constrain Proportions Interpolation: bicubic Select lightness channel Set Selection To: all Copy Select Lab channel Paste Anti-alias: none Set current layer To: layer Name: “L” Hide current layer Select Background Select a channel Set Selection To: all Copy Select Lab channel Paste Anti-alias: none Set current layer To: layer Name: “A” Hide current layer Select Background Select b channel Set Selection To: all Copy Select Lab channel Paste Anti-alias: none Set current layer To: layer Name: “B” Canvas Size Width: 300% Horizontal: left Move current layer To: 66.7%, 0% Select layer “A” Move current layer To: 33.3%, 0% Show layer “L” Flatten Image