10.47.  Subtract from Selection
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10.47.  Subtract from Selection

Revision History
Revision $Revision: 1937 $ 2006-08-03 scb

The Subtract from Selection command creates a selection in the current layer from the Alpha Channel. Opaque pixels are fully selected, transparent pixels are unselected, and translucent pixels are partially selected.This selection is subtracted from the existing selection. The Alpha channel itself is not changed.

10.47.1.  Activating the Command

  • You can access this command from the image menubar through Layer → Transparency → Subtract from Selection

  • or from the pop-up menu which appears when you right-click on the active layer in the Layer Dialog.

10.47.2.  Example

Figure 14.114.  Applying “Subtract from Selection”

Applying Subtract from Selection
Applying Subtract from Selection

Non-transparent pixels of the active layer have been subtracted from the existing rectangular selection.


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10.46.  Add Alpha channel to Selection   Home  10.48.  Intersect Alpha channel with Selection