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Color Adjustment button
Click this button, and the Color Adjustment dialog box will appear:
Color Adjustment is another convenient tool that you can use to adjust and calibrate the colors in an image. This function works much like the Color Balance tool, but it provides another way to control the property of image colors.
The Color Adjustment tool uses three control items: Hue, Saturation and Lightness. Hue is a characteristic that distinguishes one color from another, while Saturation decides the intensity of a color. Lightness is used to measure the amount of brightness in a color. The lighter a color is, the higher brightness it has.
Color Wheel: Color Wheel is where you can specify the hue and saturation of the color you want to use. Move your mouse cursor on the Color Wheel and then click on it. Drag within the Color Wheel to select the hue of the color you want to use. The distance from the center of the wheel decides the saturation of the color: the farther you drag your mouse cursor from the center of the Color Wheel, the higher the saturation.
Lightness Bar
You can drag the triangle below the Lightness Bar to adjust the lightness of the color you choose. To increase the lightness, drag the triangle to the right. Otherwise, drag the triangle to the left to reduce the lightness.
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