From the course: Photoshop: Channels and Masks

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How RGB works

How RGB works - Photoshop Tutorial

From the course: Photoshop: Channels and Masks

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How RGB works

- [Instructor] In this exercise, I'll show you how Photoshop mixes the red, green and blue channels to produce the full color RGB composite. And we'll also see how RGB is that one color model that's best suited to masking. Now, before we go any further, I want you to understand the relationship between the Channels and Layers panels here inside Photoshop. Contrary to what many people think, they are not somehow variations on a common theme. Every photograph that you open will begin with multiple channels. It will probably be an RGB image that contains red, green, and blue channels, but it will definitely contain at least three channels of information, whereas every digital photograph begins life with no layers whatsoever. It's up to you to add the layers, therefore, the layers are optional, and the channels are absolutely essential. Also worth noting, a channel will always show you a flattened composite view of the image, so for example, if I click on the red channel, and then I…

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