Evaluate Your Channels

Layers is a very interesting and useful tool in Photoshop, but slightly complicated.

Press F7, you can see the Layer window appears on your screen. Let’s try something. Open a picture, select Channel from the Layer window, which is next to the Layers. Now, you can see the same picture appear in an RGB channel, red channel, green channel, and blue channel. In RGB channel, the picture still with full color, but it changes black and white in different range in other channels. These images will be useful when we want to have some special effects.