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Changing the tone (brightness and contrast)

You can improve the appearance of a scanned image by adjusting the tone before you scan the image. Tone is a measure of brightness and contrast—the intensity of blacks and whites, or colors, in a scanned image.

The way your monitor is set up affects the way an image appears on the screen. For information, see your monitor manual.

Brightness

Brightness determines the overall lightness of a scanned image.

mWith increased brightness, the scanned image generated by the scanner will be lighter.

mWith decreased brightness, the scanned image will be darker.

Contrast

Contrast is a measure of differences between light and dark tones.

mWith increased contrast, all light tones become increasingly lighter, and all dark tones become increasingly darker at the same rate.

mWith decreased contrast, all light tones become increasingly darker, and all dark tones become increasingly lighter at the same rate.

To change the tone of a scanned image:

In the Dispatcher window, click Scan to open the Apple Color OneScanner dialog box.

Click Preview.

Drag to select the portion of the image you want to scan.

Scanning Images

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Apple 1230, 627 user manual Changing the tone brightness and contrast, Brightness