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Using lab colour........

PostPosted: Sun Nov 27, 2005 3:27 pm
by big pix
had a play using curves and lab color on a old pix......I thought the first one was good till I had a play using curves, A and B channel in lab color. Just makes the colors jump......... more testing to be done on other images.......

image 1 using rgb color

Image

Image 2 with adjustments using LAB color and returning to RGB. This is my first test using LAB color and more testing needs to be done, but I think you will get much better color using LAB color and a profiled monitor

Image

PostPosted: Sun Nov 27, 2005 4:54 pm
by krpolak
I prefer version 1. It has nice, silk tones. Second one if oversaturated and it really doesnt matter if you do in in saturation slider or playing with channel a and b ;-)

Give #1 small bump and that all, will be perfect.

Regards,

K.Polak PS Also in #2 you introduced banding. That is definitelly not good.

PostPosted: Sun Nov 27, 2005 4:59 pm
by rebel
Lab color is an interesting mode, I play around with it all the time. Adjusting contrast in each channel will give you a similar result that you got with the curves.

PostPosted: Sun Nov 27, 2005 5:00 pm
by kipper
For some reason I like the rainbow effect of #2, yellow->orange->red->green->blue.

Looks neat :)

PostPosted: Sun Nov 27, 2005 5:06 pm
by big pix
Doing a bit more testing and research, LAB Color does tend to be a bit on the red side which you can ajust to suite your image, I have improved the pix I have posted but yet to add to this thread as i am still doing some research, but with Photoshop there is more than one way to do things, and you find the one that will give you the results that you want......

PostPosted: Sun Nov 27, 2005 7:19 pm
by mudder
That's a great tip, I'm amazed at how many ways there are in PS to do similar things just with greater subtle controls... I'll have a play with that later, thanks.