The
command converts the layer masks of the selected layers into a selection, which is subtracted from 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.
Σχήμα 16.100. Illustration of Subtract Masks from Selection
The original image with a selection and the Layers Dialog with a layer mask created via Add Layer Masks… with the «Layer's alpha channel» option enabled.
The result after applying «Subtract Masks from Selection»: the selection of the non-transparent pixels of the active layer is subtracted from the initial selection.