2.7. 色域選択

2.7. 色域選択
	2. 選択ツール

The Select by Color tool is designed to select areas of an image based on color similarity. It works a lot like the Fuzzy Select tool. The main difference between them is that the Fuzzy Select tool selects contiguous regions, with all parts connected to the starting point by paths containing no large gaps; while the Select by Color tool selects all pixels that are sufficiently similar in color to the pixel you click on, regardless of where they are located.

2.7.1. 呼び出し方

There are different possibilities to activate the tool:

From the main menu: Tools → Selection Tools → By Color Select.
By clicking the tool icon in the Toolbox.
By pressing the Shift+O keyboard shortcut.

2.7.2. キー修飾 (初期設定)

色域選択に固有の修飾キーはありません。選択ツールに共通のものなら同じように使えます。詳しくは選択ツールをお読みください。

2.7.3. ツールの操縦

図14.24 色域選択ツールを使用: 選択された画素は連続しているとは限らない

ファジー選択ツールと同様に、クリックするとすぐさま選択ができあがり、最初にクリックした画素が参照されます。ファジー選択ツールと同様に、クリックした後にドラッグすると値を変更できます。

You can move the selection outline with the arrow keys, not with the mouse.

2.7.4. オプション

図14.25 「色域選択」ツールのツールオプション

Normally, tool options are displayed in a window attached under the Toolbox as soon as you activate a tool. If they are not, you can access them from the main menu through Windows → Dockable Windows → Tool Options which opens the option window of the selected tool.

	注記
	See Selection Tools Options for help with options that are common to all these tools. Only options that are specific to this tool are explained here.

Select transparent areas, Sample merged, Draw mask: These three options work exactly the same way they were described for the fuzzy selection already. See for 「オプション」 details.