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Originally Posted by jonk I seem to be having a problem with masking. When I open an image and I want to add a Levels… layer to mask off part of the image, I cannot see the effects on the actual image. I also noticed that the icon beside the white box is different the what others have. As you can see in the layers stack I tried to black out part of the image by painting directly on the image, but I see not effect on the image, but I do see the effect in the white box.
I am use to using Layer Masks but I have been trying to use the Levels Adjustment Layer. So using Levels Adj Layers for masking effects is new to me.Jon |
Jon, I'm afraid that I wasn't clear yesterday in my answer to another masking question, and you have become confused because of that. The Levels adjustment layer is used to change certain aspects of an image (contrast, color shift, etc.) -- it is NOT used to "mask off part of an image". Yesterday we were showing you how to adjust the contrast on an image which needed the shadows to be darkened, and my answer included the use of a Levels adjustment layer. The Levels adj. layer darkened the shadows, but it also darkened areas which should not be darkened that much, and I showed you that you could paint on the adjustment layer itself to change "the effect of the Layer mask" -- not to mask off any of the actual image. All of the adjustment layers work this way -- you run the adjustment to make the changes that you want, and if you need to change the effect to just a bit of the image, you can make that change by painting on the mask. First, though, you try to make adjustments by using the controls in the adj. layer. You can also use different layer blend modes (Soft Light, Multiply, Luminosity, etc.) to make changes to the effect of the adjustment layer.
Okay, now if you are applying a Levels adjustment to your image, first you have to move the sliders on one or more channel options (RGB, R, G, B) to make a change to the look of the image -- then IF that effect is too strong in an area of the image (and you cannot use one or more of the sliders to make it look right), you can paint on the Levels mask with black to lessen the effect. Just painting on the mask WITHOUT adjusting the Levels layer will not show any change in the image -- because there was no change created by the Levels adjustment layer in the first place to make a change to (unless you change the layer blend -- if you place a Levels adj. layer above an image, don't run Levels, but change the layer blend to Multiply, etc. -- you can make a change to the look of the image and you can use the mask to adjust that change.
Hope that helps, rather than confuses...