June 2013
Beginner
926 pages
36h 13m
English
Content preview from Photoshop CC: The Missing ManualBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 6. Understanding Channels
At the heart of any Photoshop file lie channels—storage containers for all the color information in your image, selections you’ve saved, masks you’ve created, and instructions for printing with special inks. Channels sound intimidating at first, and folks have been known to shudder at their mention and avoid them completely. But to really understand Photoshop, it’s good to get a grip on channels. Luckily, you don’t need a PhD to do that—just a little patience.
This chapter gets a little technical at times, but if you soldier through, you’ll be rewarded with wisdom that’ll help you perform some amazing pixel wizardry. You’ll get a warm, fuzzy, enlightened feeling as you learn to:
Use channels to make complex selections and masks (Loading an Alpha Channel as a Selection).
Map one image to the contours of another (Mapping One Image onto Another).
Create a beautiful black-and-white image from a color version (pages Multichannel Mode and The Lightness Channel).
Perform highly targeted color adjustments (see Figure 10-23 on page 394).
Sharpen your images without introducing noise (Sharpening Individual Channels).
And that’s just the tip of the iceberg. Everything you do in Photoshop involves channels (well, save for working with paths and text, which you’ll learn about in Chapters Chapter 14 and Chapter 15), so it’s important to get familiar with them. If you understand how Photoshop does what it does, you can make it do even more in less time and with less ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.