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Sometime ago there was a thread on sharpening. One technique described by Tobie that sounded great to me was: "If you wish to apply your mask only to the Luminosity channel, then you can do this right in RGB by using an adjustment layer, and applying it through luminosity mode." With this technique you don't have to switch to LAB mode to sharpen luminosity only. I didn't get a chance to try this technique when it was first posted. I got busy dulling my chain saw and forgot all about the technique until today. Here's my problem. I can create an adjustment layer such as levels, curves etc. Do it all the time. I can set adjustment layer to luminosity. Now here's my question. How do you apply the Unsharp filter to an adjustment layer? I've obviously missed something or don't understand Tobie's words. When I run the USM filter with an adjustment layer active there is nothing to adjust, just the white of the mask. Can someone explain Tobies technique? I would rather do my luminosity USMing in RGB instead of switching back and forth among RGB and LAB JoeMead -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Please: Stay on topic. Trim quoted messages. http://www.leben.com/lists for list instructions.
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