HOW TO: BLEND CHANNELS

COMBINE IMAGES

James says… Open the portraits in Photoshop. Copy one (Cmd/ctrl+c) and paste it into the document with the other image (Cmd/ctrl+v). Use the Move tool to position the pasted image so it fits over the second one neatly.

TURN OFF CHANNELS

James says… Head to the Layers panel (Window>layers) and doubleclick on the top layer to bring up the Blending Options box. There are lots of different blending effects here, including the option to turn colour channels on or off. Toggle off the R box to turn off the red channel.

TWEAK COLOURS

James says… Double-click the bottom layer and turn off the G and B channels, so it’s just red, turn off the R channel on the other layer so it’s just green and blue. Merge both layers and open the Camera Raw Filter (Filter>camera Raw Filter) to fine-tune the image to taste.