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A Luminosity Mask is a fast and easy way to create a new mask based on the brightness of image pixels. When selected, the command will fill the active layer with a mask based on the brightness of image pixels. The transparency for the layer is directly related to the brightness of the pixels.
This command works very well to mask an overlaid image such as a cloud or texture layer. You can also mask a copy of a layer to enhance only part of an image. For example, if the sky and clouds are bright, you can create an exact mask only for that area of the image and then enhance them.
Here’s how to create a Luminosity Mask:
When editing a mask, you can press the Backspace hotkey to reset a gradient/radial mask to its default setting.
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