Features
- Cover Type: Paperback with 304 pages
- Published by: Peachpit Press
- Edition: 1st Edition July 28, 2006
- Written in: English
- ISBN 10 Number: 0321449916
- ISBN 13 Number: 978-0321449917
-
Book Dimensions:
9 x 7.2 x 0.6 inches
- Weighs: 1.2 pounds
Product Description
It's a sad but undeniable fact of life: Whether you scan, shoot, or capture, the process of digitizing images introduces softness, and to get great-looking results, you'll need to sharpen the great majority of digital images. The softness introduced during digitizing results from the very nature of the digitizing process. To represent images digitally, we must transform them from continuous gradations of tone and color to points on a grid. In the process details gets "averaged" into the pixels, softening the overall appearance. For some types of printed output, further softness is introduced when the image pixels are converted to dots of ink or toner. As a result, just about every digital image requires sharpening. But another sad fact of digital photography is that most images are sharpened badly--either not enough, too much, or using the wrong methods--creating chunky details and harsh edges. Author, Bruce Fraser is here to teach readers all they need to know about sharpening including when to use it, why it's needed, how to use the camera's features, how to recognize an image requirements sharpening, how much to use, what's terrible sharpening and how to fix over sharpening. For more on Sharpening: http://www.creativepro.com/story/feature/11242.html
About The Author
Bruce Fraser is an internationally known author, consultant, and speaker on the topics of digital imaging and color reproduction. In addition to authoring Real World Camera Raw with Adobe Photoshop CS2 (ISBN 0-321-33409-4), he is a contributing editor for Macworld magazine and co-author of the best-selling books Real World Adobe Photoshop CS2 (ISBN 0-321-33411-6) and Real World Color Management, Second Edition (ISBN 0-321-26722-2).
Reader Reviews
There are plenty of books by Photoshop gurus that explain the software's tone and color controls and most users can usually master these functions if they make a serious effort. But one function that always seems rather inexact is the detail function, as exemplified by the sharpening tools. This still seems to be a rather hit or miss proposition, and there has long been a need for more detailed instruction on this function. Fraser takes the function on, and even if you don't agree with all his recommendations, this book should clarify what sharpening is about. The book spends more time explaining how and why to sharpen than actually showing the reader how to sharpen pictures and that's as it should be since using the sharpening tools is relatively simple once you understand what is happening. Fraser agrees with most experts that output sharpening should be the last thing you do to an image before you print or create a web page. However, he convincingly argues for sharpening in several passes for source and content before output sharpening. However to avoid the problems created by over-sharpening an image, he strictly controls source and content sharpening through the use of image masks in the earlier stages. He also recognizes that dealing with digital noise before sharpening is critical to avoid actually enhancing the noise. He recommends doing this in the raw processing stage where possible, and recommends the use of plug-ins where noise is really serious. Fraser's writing is clear and unambiguous. The first time he describes a procedure he includes all the steps involved. Fraser explains the use of smart sharpening, but generally dismisses this Photoshop tool in favor of unsharp mask. As a final chapter he includes a number of examples from media as different as a large format transparency and the scan of a print, with a list of steps. The book is profusely illustrated. In many cases we see that the recommended procedures make barely noticeable but positive changes. The real test is whether the author's multi-pass approach to sharpening really works. I tried it on several pictures and all of them looked better with the multi-pass approach. On the other hand, a question arises as to whether the benefits to be derived from multi-pass processing are worth the effort. Even though Fraser provides you with instructions on created actions to accomplish these tasks, the effort may not always be worth it. On the other hand, for the gallery quality print it probably is worth while. This book is not for the beginning Photoshop user, but rather for the experienced user. This is not only because Fraser assumes the reader knows how to use Photoshop tools like blending modes and masks, but also because the reader must have enough experience to know when and whether Fraser's recommendations should be adopted. But for the experienced user, I consider this book essential reading.
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