5.4. スポイト (カラーピッカー)

5.4. スポイト (カラーピッカー)
	5. Other Tools

The Color Picker Tool is used to select a color on any image opened on your screen. By clicking a point on an image, you can change the active color to that which is located under the pointer. By default, the tool works on the active layer, but the Sample merged option lets you grab the color as a composite from all visible layers. Only colors in visible layers are used. A Color Picker Information window opens when you click on the image.

5.4.1. 呼び出し方

There are different possibilities to activate the tool:

From the main menu: Tools → Color Picker..
By clicking the tool icon in the Toolbox.
By pressing the O keyboard shortcut.
By pressing the Ctrl key while using a paint tool. The Color-picker dialog is not opened during this operation and the tool remains unchanged after releasing the key. Nevertheless, you can get information by using the Pointer window.

5.4.2. Key modifiers

Ctrl

Ctrl does nothing here. But, when using a paint tool, pressing Ctrl allows you to pick colors without having to switch to Color Picker tool.

Shift

If the Use info window (Shift) option is not checked, pressing the Shift key when you click on a pixel opens the Color Picker Information window.

	注記
	The Pointer Information gives you the same information permanently. Note that it defaults to Sample merged.

5.4.3. オプション

図14.135 「スポイト」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.

Sample average

半径スライダーは最終的に得られる平均的な色を算定するのに必要な正方形の領域の大きさを定めます。クリックしている短い時間にマウスポインターの姿がその大きさの正方形に変化します。

Sample merged

When enabled, the Sample merged checkbox will take color information as a composite from all the visible layers. Further information regarding Sample Merge is available in the glossary entry, Sample Merge.

Pick Target (Ctrl)

Pick only: 選択した画素の色が情報ダイアログで表示されますが、それ以外には何もしません。
Set foreground color: The Foreground color, as shown in the Color Area of the Toolbox, will be set to the color of the pixel you click on.
Set background color: The Background color, as shown in the Color Area of the Toolbox, will be set to the color of the pixel you click on.
Add to palette: このオプションを選ぶと、採られた色は色パレットに送られます。パレットエディターもご覧ください。

Use info window (Shift)

このオプションが有効ならばクリックと同時に自動的に情報ウィンドウが開かれます。 Shift キーを押している間はこの指定が一時的に反転します。

図14.136 Color Picker Information Window