Adobe Photoshop offers a lot of ways to apply color effects to your images. But maybe the Gradient Map adjustment layer is the most flexible and easy to use of them all. With this tool you can apply one of the many great sample gradients provided by Adobe in the standard Photoshop installation. you can create all kinds of color or artistic effects with just one click. And believe me, many, many of them are really outstanding.
In this tutorial we are going to create a psychedelic poster with just an image, a gradient map and a texture.