2057 Views 2 Replies Latest reply: Jan 26, 2011 5:39 PM by Brendan Jones
It's not a very useful filter, and is not directly comparable to the Photoshop Levels filter. There is no histogram, which I consider essential.
Input & Input Tolerance lighten the image (they work together)
Gamma adjusts midtones
Output & Output Tolerance darken the image (they work together)
Problem is, you have to drop the sliders off their default settings to get them to work at all. Start by dropping the Input and/or Output sliders to 20. Then adjust the companion Tolerance sliders down to see the effect.
I think you'll have more luck with the Color Corrector filter, which has sliders for Whites, Mids, Blacks & Saturation. Among other things, you will find the numeric levels sliders more comparable to the PS Levels controls.