The Color Picker Tool Using the Eyedropper to Select a Foreground Color from the Image

You can use the Color Picker tool to select any color on an active layer or image. If you select this tool and click on a color on your image, you can select this color as the foreground or background color. The foreground color is used when you're painting, filling, or adding text. In GIMP, the foreground color is also the default color for color gradients.

Using the Color Picker is the most simple and comfortable way to select a paint, fill, or text color. Thus, you'll be learning it first, even though it is not useful for correcting the example image, a process that will require using more complex color select tools.

For now, select the Color Picker from the Toolbox. The mouse pointer takes the shape of an eyedropper. Clicking an area on the image causes the eyedropper to siphon the area's color, which is also displayed in the Color Picker window if this option is selected in the tool's preferences.

Tool Options click or double-click the tool's icon to open the tool options dialog, which has the following options:

• Sample average: The Radius slider adjusts the size of the area used to determine an average color from pixels of your image. By default, this setting is not activated. The default setting is an area of exactly 3 pixels. So you can choose an exact color of a pixel this way. Activate the setting and adjust the slider to select an area larger than 1 pixel. This will result in an average color of the selected pixels.

• Sample merged: If the check box for this option is selected, the option will display color information from all the visible layers of your image. If the check box is disabled, you can only pick colors from the active layer, which is the default setting.

• Pick Mode > Pick only: This option tells the tool to display only the color information of the selected area in the Color Picker window, but it won't change the foreground color.

3.6 TOUCHUP WORK 5 — FRESHENING UP A "DULL SKY"

• Pick Mode > Set foreground color: The foreground color shown in the Toolbox color area will be set to the color you click on. It will be used as the painting, filling, and/or text color and serve as the primary color for gradients.

• Pick Mode > Set background color: This is the background color shown in the Toolbox color area and will be set to the color you click on. It will be used as the active background color and serve as a secondary color for color gradients.

• Pick Mode > Add to palette: The color you select will be added to the existing palette of an image that has its own color palettes (Mode > Indexed Colors).

• Use info window: If you select this option, the Color Picker Information window will be displayed as soon as you click in the image window with the tool.

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Figure 3.28

The windows of the Color Picker (eyedropper) tool m

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Pick Mode {Ctrl} Q Pick onty 9 Set foreground color (£) Set background color ■ Add to palette j/j Use info window (Shift)

Figure 3.28

The windows of the Color Picker (eyedropper) tool

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CHAPTER 3

USING MASKS AND L AY E R S — PA I N T I N G, FILLING, AND COLOR TOOLS

The Color Area in the Toolbox

Figure 3.29

Clicking the upper-left field in the color area of the Toolbox opens the Change Foreground Color window.

Figure 3.29

Clicking the upper-left field in the color area of the Toolbox opens the Change Foreground Color window.

The field on the top-left of the window activates the Change Foreground Color window for the foreground color; the lower-right field activates the window to choose the background color.

The foreground color is the active color for painting, filling, and text tools and the primary color for gradients.

The background color is the secondary color for the color gradient tool and the "paper color" used by the eraser tool for background layers without an alpha channel (without transparency).

Click the bent dual arrow (top right) to quickly change the painting color as you work or to use the preset background color as the foreground color.

Click the small black-white icon to reset the default colors—black and white as foreground and background colors, respectively.

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