Colorizing Images With Gradients In Photoshop

http://www.photoshopessentials.com/photo-effects/gradient-map/

The original image. Image licensed from iStockphoto by Photoshop Essentials.com.

Step 2: Add A Gradient Map Adjustment Layer

Now that we have our black and white version, we can colorize the image with a gradient. For that, we’ll use another adjustment layer, this time a Gradient Map. Click again on the New Adjustment Layer icon at the bottom of the Layers palette and choose Gradient Map from the list:

Adding a Gradient Map adjustment layer in Photoshop. Image © 2010 Photoshop Essentials.com.