August 2009
Intermediate to advanced
360 pages
7h 45m
English
book
Real World Image Sharpening with Adobe Photoshop, Camera Raw, and Lightroom, Second Edition
by Bruce Fraser, Jeff Schewe
Content preview from Real World Image Sharpening with Adobe Photoshop, Camera Raw, and Lightroom, Second EditionBecome 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,
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 Two. Why Do We Sharpen?: And What Must We Take Into Account When We Do So?
Whenever we turn photons into pixels, we lose some degree of sharpness. No matter how high-resolution our capture devices or how expensive our lenses, they sample a fixed grid of pixels and are thus limited. So cameras (and scanners) turn the continuous gradations of tone and color that exist in the real world into discrete pixels of the digital world. When the pixels are small enough, they provide the convincing illusion of continuous tone, but it is just an illusion. Image sharpening is one of the things we simply must do to make the illusion convincing.
The reason that sharpening is such a complex topic (and the reason for this book) is that successful sharpening ...
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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.
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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.