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Chapter 12. Channels > Understanding Color Channels

Understanding Color Channels

Using color channels is like peeking behind the scenes and seeing how Photoshop is creating your image. You might think of color channels as the engine in your car: When you push the gas pedal, you are causing a whole chain reaction of events under the hood. In this case, while you are working in layers, the chain reaction is occurring in the color channels. They store up-to-the-minute information about RGB colors (red, green, and blue light), CMYK colors (cyan, magenta, yellow, and black ink), or any other color modes you are using. If you don't tamper with the channels, Photoshop will assume that whatever you're doing, you want it to affect all of the channels at the same time. But if you pop the hood and designate specific channels, you can do some very precise sculpting and manipulations that would be virtually impossible without using color channels.

You'll need to choose a color mode to work in, but before you do, you might want to know a little something about your options.


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