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Author Topic: restoration in LAB  (Read 4941 times)

Offline nate

  • OPR Newbie
  • *
  • Posts: 6
restoration in LAB
« on: June 29, 2006, 04:30:34 PM »
Hey everyone, I was wondering how many do restoration in LAB instead of RGB.
L*a*b*

Offline Mark Wilson

  • OPR Jr. Member
  • **
  • Posts: 63
    • Photo Restoration Tips
Re: restoration in LAB
« Reply #1 on: June 29, 2006, 04:36:05 PM »
I find LAB useful for making luminosity adjustments without risk of altering colour. Other than that I generally stick to RGB and just pop in and out of LAB mode when I need to.

How about you?

-Mark.
"There are no rules for good photographs, there are only good photographs." - Ansel Adams 1902-1984.

Offline nate

  • OPR Newbie
  • *
  • Posts: 6
Re: restoration in LAB
« Reply #2 on: June 29, 2006, 04:54:35 PM »
Hey Mark, for some of the photo that have spotting discoloration, especially the B&W and low color photos, I've found going into the "a" and "b" and removing the color works very well and doesn't disrupt the luminosity of the image. Sometimes though its need to go into RGB as everything is not available in LAB.
L*a*b*

Offline Carol

  • OPR Newbie
  • *
  • Posts: 24
    • Pixel By Pixel: Digital Photo Restoration and Retouching
Re: restoration in LAB
« Reply #3 on: June 29, 2006, 11:49:41 PM »
If any image has extensive damage to a particular channel (in most cases the blue channel), I occassionally replace that channel with the lightness channel from LAB.   (Cut and Paste into RGB document). Works very well, especially for B&W images .  When using this method on colour images, you may need to revert to replacing colour manually.
« Last Edit: July 02, 2006, 11:48:25 PM by Carol »