Ramble: Masking with Equalize — OZONE Asylum, home of the Mad Scientists

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Your Text: Insert Slimies » Insert UBB Code » Close Last Tag \| All Tags UBB Help	[quote]Follow up question: I tried a midtone mask on the Lum alpha channel and then another on the original photograph (using Color Range). Is there a difference in what I will get? Just from what I can see, the mask from the Lum alpha channel and the mask from the original appear to be pretty much the same. [/quote] A Gradient Map works on Lum already. Extracting Lum and then using a G-Map is rather redundant, but I usually do it anyways. If you use a G-Map that goes black <> white and Smoothness set to 0%, then you will get Lum. This means that you can keep a G-Map in the Layer palette. Which means you can turn it on/off and do various other Lum mask tricks on-the-fly if you want. Not just turn it on/off as you see fit, but also change presets rather quickly. Very handy. Something like: RGB 3d > Lum 1d > RGB 1d/3d This is why you can't use Image > Adjust > Gradient Map in the Channels palette - it needs to start with RGB to get Lum and interpolate the Lum line to get final RGB. You can't use RGB in the Channel palette, either going in or coming out. (If you get into skeletalization or Cellular-ness of 3d space, you can create a true 3d gradient map. Not that I think about these things.) BRB... Loading...
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