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Photoshop CS Add Ons From Al Ward.
Monday November 15, 2004
by Al Ward

Al Ward has provided Imaging Revue with Phtoshop CS styles to download. These files are in a zip format and can be opened using both Stuffit and WinZip. For more information about Al please visit www.actionfx.com. Please stay tuned for a future discount for IR members to Al's site.

Profile FAQ And Instruction Manual
Sunday October 31, 2004
by IR Staff

We have compiled a new and up to date Profile FAQ. If you are ordering a printer profile, please make sure that you read the information contained here. Many of the questions you may have will be answered here. These articles are in PDF format.

Patching and Healing with Martin Evening.
Friday October 22, 2004
by Martin Evening

The third in a series of tutorials, Martin discusses the Healing Brush and Patch Tool. Martin's video tutorial accompanies this PDF and can be uncompressed using WinZip or the Stuffit expander. Published with permission of Focal Press Publishers, a division of Elsevier. Copyright 2004. For more information about this book and other Focal Press titles, please visit www.focalpress.com.

Nikon Scanning Workflow
Friday October 15, 2004
by Scott Martin

Scott Martin has deciphered Nikon's workflow technology and brings us this quick guide to achieving great scans. For more information on Scott and his work, please visit www.on-sight.com.

Image Adjustments with Martin Evening.
Friday October 8, 2004
by Martin Evening

The second in a series of tutorials, Martin discusses the Photo Filter and Color Temperature. Martin's video tutorial accompanies this PDF and can be uncompressed using WinZip or the Stuffit expander. Published with permission of Focal Press Publishers, a division of Elsevier. Copyright 2004. For more information about this book and other Focal Press titles, please visit www.focalpress.com.

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Software > Inside Photoshop > ACR: How to deal with channel clipping

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AuthorSubject: ACR: How to deal with channel clipping   [Go to Bottom of Page]
David Madison
Posted on Tue Jun 22, 2004 10:02 AM

I'm curious what the ACR experts think the best approach is for processing an image in ACR which exhibits single channel color clipping. For example, a city scene with a large bright red stop sign in it.

In ACR, the overall scene appears about right with no exposure correction. But the ALT key reveals a lot of red channel clipping in the red stop sign.

The approaches I have tried include:

>> reducing ACR exposure slider until the clipping goes away, then adding brightness slider to bring back sufficient lightness, then most likely later PS needing to boost curves more to bring shot back to proper overall "exposure".

>> reducing overall color saturation in ACR until clipping goes away, though this affects the entire shot and needs work later in PS to correct other colors

>> reducing single color saturation until clipping goes away, though sometimes this requires a combination of a couple of the color sliders

>> switching from Adobe 1998 to ProPhoto which many times solves the problem due to the bigger gamut...but then needing to deal with the problem later in PS to deliver a file in something other than ProPhoto

Can anyone comment on these strategies and what the best approach might be?

David Madison


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