November 2008
Beginner
552 pages
14h 24m
English
Content preview from Sams Teach Yourself Adobe Photoshop CS4 in 24 Hours<feature><title>What You’ll Learn in This Hour:</title>
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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.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.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.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.
Chapter 15. Applying Filters to Improve Your Picture
When you get right down to it, Photoshop is really all about math. That’s right—I know some of you don’t want to hear it, but it’s true. All the actions that you can perform on an image in Photoshop rely on complex calculations of pixel color and position with respect to other variables that you specify. That’s why we let the computer do the heavy lifting, but it’s also why there are so many filters for you to play with. Each filter is a combination of changes to your image based on its underlying numbers, and since ...
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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.