View Full Version : Episode 151: Photoshop World: Lab Color with Dan Margulis [Discussion]
marilee
11-09-2009, 06:33 PM
Want to adjust color and contrast independently of each other in Adobe Photoshop? Learn about "lab color" from Dan Margulis, who joins Bert Monroy at Photoshop World in Las Vegas.
Watch or download this episode now! (http://revision3.com/pixelperfect/labcolor)
thatch25
11-12-2009, 07:53 PM
As many times as I look at the video, I still can't work out what Dan did to change the colours.
lifestyle151
11-12-2009, 07:58 PM
I have to say that's one great tip. But i have to ask is this Lab thing in come in photoshop cs3. or is it a plug-in. sorry to ask i just never thought of changing images from rgb.
In LAB mode, activate the "a" channel, then invert. Image> Adjustments> Invert
or
in Curves, Image> Adjustments> Curves, in the "a" channel, invert the curve for the "a", as in move 0 to 100, and 100 to 0.
thatch25
11-16-2009, 03:21 AM
Thanks for the answer to my question Herb.