The Subtract Alpha from Selection command creates a selection from the combined alpha channels of all selected layers and subtracts that from the already existing selection.

Opaque areas are fully selected, transparent areas are unselected, and translucent areas are partially selected. The alpha channels of the selected layers are not changed.

7.43.2. Пример

Рисунок 16.110. Applying «Subtract Alpha from Selection»

Example image and its layers.

Непрозрачные точки активного слоя были удалены из существующего прямоугольного выделения.