Learn how to reduce stubble or five o'clock shadows from male portraits. Here we cover the use of the dust & scratches filter,
A layer mask is used to hide portions of a layer and reveal portions of whatever layer is below it. You can modify the mask by using the brush tool and painting in either black or white.
layer mask, and the advanced layer style command "
The "blend if" option is available from the advanced blending area of the layer style dialog box.
blend if" on the underlying layer to achieve the effect.