Cross-Processing

Firstly, we need to adjust the levels; So Layer > New Adjustment Layer > Levels.
Rather than manipulating the layers together as RGB, we’ll do them one at a time to create the desired effect.
Here are the settings I’ve used for each and a small picture of the result at that stage.

Red:

008 Cross Processing 002 Cross Processing
008 Cross Processing 003 Cross Processing

Green:

008 Cross Processing 004 Cross Processing
008 Cross Processing 005 Cross Processing

Blue:

008 Cross Processing 006 Cross Processing
008 Cross Processing 007 Cross Processing

Also in the Photoshop Tutorials category