The Mask to Selection command converts the layer mask of the active layer into a selection, which replaces the selection that is already active in the image. White areas of the layer mask are selected, black areas are not selected, and gray areas are converted into feathered selections. The layer mask itself is not modified by this command.

Figure 10.106.  Illustration of “Layer Mask to Selection”

From left to right: the original image with a selection, the Layers Dialog with a layer mask created with the “Layer's alpha channel” option, after “Mask to Selection”.