From the course: Photoshop: Channels and Masks
Unlock the full course today
Join today to access over 22,400 courses taught by industry experts or purchase this course individually.
How RGB works - Photoshop Tutorial
From the course: Photoshop: Channels and Masks
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…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Contents
-
-
-
It all starts with a channel1m 49s
-
Introducing the Channels panel4m 25s
-
How color channels work6m 5s
-
Viewing channels in color4m 12s
-
How RGB works4m 15s
-
Single-channel grayscale6m 21s
-
Drafting a mask with Black & White7m 18s
-
The other 3-channel mode: Lab6m 26s
-
The final color mode: CMYK8m 7s
-
How CMYK works5m 49s
-
Mask in RGB, copy to CMYK8m 25s
-
-
-
-
-
-
-
-
-