7.43. Subtract Alpha from Selection
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7.43. Subtract Alpha from Selection

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.

7.43.1. コマンドの呼び出し方

You can access this command

  • From the main menu through Layer → Transparency → Subtract Alpha from Selection.

7.43.2. 使用例

図16.101 Applying 「Subtract Alpha from Selection」

Applying 「Subtract Alpha from Selection」

Example image and its layers.

Applying 「Subtract Alpha from Selection」

もとからあった矩形の選択範囲から、 活性レイヤーの不透明な画素から生成された選択範囲が引かれる。


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7.42. Add Alpha to Selection  ホーム  7.44. Intersect Alpha with Selection
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