RetouchPRO

Go Back   RetouchPRO > Technique > Photo Retouching
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read


Photo Retouching "Improving" photos, post-production, correction, etc.

Yellow/red cast

Reply
 
Thread Tools
  #11  
Old 09-13-2006, 10:17 AM
Flora's Avatar
Flora Flora is offline
Senior Member
 
Join Date: Mar 2002
Location: Milan, Italy
Posts: 2,325
Blog Entries: 3
Hi,

Christo,


Quote:
Originally Posted by Christo
The attached image has been critiqued by one side as having too much yellow, the other too much red.
... and, in my opinion, a bit too much magenta as well...

I used:

Selective Colors
Hue/Saturation
Blank Layer set to Color (for the green cast on the jacket and on the top of the hair)
Levels to improve contrast.

Murray,

I think you toned down the colours very well ... but, in my opinion, using a "a blank layer set to Color blend mode ... " as only colouring method on the face, or skin in general, can result in a rather flat colour...

Angel_Ice,

extracted from PS Help file

Quote:
The Lab Color mode has:
a lightness component (L)
the (a) component (green-red axis)
the (b) component (blue-yellow axis)
......
You can use Lab mode to:
edit the luminance and the color values in an image independently, move images between systems......

Lab color is the intermediate color model Photoshop uses when converting from one color mode to another.
Great job everybody!!!
Attached Images
File Type: jpg F_091306RS.jpg (99.8 KB, 47 views)
Reply With Quote top
  #12  
Old 09-13-2006, 10:20 AM
Flora's Avatar
Flora Flora is offline
Senior Member
 
Join Date: Mar 2002
Location: Milan, Italy
Posts: 2,325
Blog Entries: 3
OOOpppssss ....

Sorry Phil ... I hadn't seen you had answered about the LAB mode already...
Reply With Quote top
  #13  
Old 09-13-2006, 01:44 PM
LonK's Avatar
LonK LonK is offline
Senior Member
 
Join Date: Jan 2006
Location: austin.tx.usa
Posts: 580
I suppose I did pretty much what Flora did, the biggest difference being that I use PhotoImpact.
Attached Images
File Type: jpg retouch26.jpg (25.5 KB, 27 views)
Reply With Quote top
  #14  
Old 09-13-2006, 07:28 PM
Daviskw's Avatar
Daviskw Daviskw is offline
Senior Member
 
Join Date: Apr 2006
Posts: 728
Hi all... good job as usual... I have nothing new to offer. Selective color and hue/saturation here as well.

I had saved it to the drive so posting anyway...lol

Butch
Attached Images
File Type: jpg 5x7.jpg (67.9 KB, 19 views)
Reply With Quote top
  #15  
Old 09-13-2006, 09:35 PM
dkcoats dkcoats is offline
Senior Member
 
Join Date: Dec 2004
Location: The frozen North
Posts: 519
Flora, you never cease to amaze me.

dc
Reply With Quote top
  #16  
Old 09-14-2006, 01:48 AM
Angel_Ice Angel_Ice is offline
Member
 
Join Date: May 2006
Posts: 34
Quote:
Originally Posted by philbach
Hi Angel Ice.
Lab mode is a different way of expressing color. We usually use RGB Mode for most of our work (Red, Green, &Blue) or CYMK Mode which is used for printing. Lab uses Lightnes and A & B channels. Before using Lab mode though its a good idea to have a good understanding of RGB and photoshop.

The advantage of Lab is that one can alter color without affecting luminosity or vice versa.

I am not a LAB expert. I read Dan Margulis "Photoshop Lab Color" last fall for the first time and I plan on reading it again this fall too. Its an excellent book, but for me I need to read it a few times to understand it better.

Thanks so much for this explanation, it's more understable for me that the one found in the Adobe Help file; thanks Flora for coping and pasting the Adobe Help but i have red it before and it was not clear for me.

Do you have some exemple of this technique or i'm going OT here?
Reply With Quote top
  #17  
Old 09-14-2006, 05:25 AM
philbach's Avatar
philbach philbach is offline
Senior Member
Patron
 
Join Date: Mar 2003
Location: Seabrook Island, SC
Posts: 1,308
Using Lab

Well using the above photo; open it in photoshop and then convert from RGB to LAB mode. In lab open up a curves adjustment layer. When the curves dialog box comes up I started with the A channel (Magenta and Green). I then rotated the diagonal line clockwise to desaturate the Magenta and greens. After doing this go to the b channel to desaturate the Blue and Yellow.

Again there are other ways of dealing with oversaturation. Using Lab is an excellent way to deal with color problems. I wish I knew more about using it.
Attached Images
File Type: jpg Lab.jpg (24.9 KB, 14 views)
Reply With Quote top
Reply

  RetouchPRO > Technique > Photo Retouching


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Removing Color Cast By the Numbers Possible? jojaspi RP Tutorials 6 09-28-2007 06:50 AM
I need help to check on colour cast Zeckson Image Help 13 07-26-2007 09:06 AM
Magenta cast when printing cahn Hidden Power Support 7 01-01-2007 10:28 AM
CS printing with colour cast Mike Guilbault Photoshop Help 14 03-31-2005 01:37 PM
Color cast scans. Jimmy Hardware 2 09-17-2003 09:58 AM


All times are GMT -6. The time now is 12:56 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2011, Crawlability, Inc.
Copyright © 2016 Doug Nelson. All Rights Reserved