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Posted: Wed Jan 12, 2011 12:24 am
by sjordan93436
Oops, I never posted my stuff on this example. I was looking at the video solution. Mike said that only RGB can have multiple neutrals. CMYK does too.
I did this example in CMYK.
Posted: Wed Jan 12, 2011 4:27 am
by ggroess
Not too bad for a CMYK rendition...
If you want take a second pass at it and run it through LAB for a 1.15 Saturation boost and work on the highlight threshold a bit...the contrast improves and the color is pretty stable.
Greg
Posted: Thu Jan 13, 2011 1:46 am
by sjordan93436
Is this better?
Posted: Thu Jan 13, 2011 1:50 am
by sjordan93436
When I use wg cmyk, the white point works fine. It moves the top of the cmy points down.
Setting a black point in cmyk is problematical. How much K? etc etc. You can move the master curve, but I feel it is better in LAB or RGB.
Posted: Thu Jan 13, 2011 2:37 am
by ggroess
That is because the K channel relates to Ink on Paper not brightness on the monitor. the true blacks hit the wall faster because you have CMY added to the K channel to make up the Blacks. In Lab you are dealing with actual L values and not a calculated value for ink on paper...
The GCR setting has the greatest effect on the K channel; try different GCR settings to see if you can find the right one for adjusting the Blacks more smoothly.
Greg