Visioneer 9750 Installation Guide download pdf (Page 54)

50 VISIONEER ONETOUCH 9750 SCANNER INSTALLATION GUIDE

3. Drag the line up or down to set a new gamma.

The input and output values represent values on the horizontal and

vertical axes for the new gamma setting. Click the Curve or Line

button to see the display as a smooth curve or a line. You can drag

the line at multiple points.

4. Click Preview to see the effect of the new settings on the preview

image.

5. Click Reset to reset the levels to their original values.

6. Click OK when the levels are what you want.

COLOR BALANCE

The color balance refers to the relative amounts of the three primary

colors in an image. By adjusting the color balance you can sometimes

compensate for an image with too much or too little of a color.

To adjust the color balance:

1. Click the Color Balance button.

The settings in the dialog box are initially set to zero for each of the

colors, indicating no change to the original image’s color balance.

2. Type a number in one or more of the Color Levels boxes to set a

new color level, or drag the triangles to the left or right.

Each color is paired with its complementary color, so as you drag a

triangle you are increasing a color while decreasing its

complementary color.

3. Click Preview to see the effect of the new settings on the preview

image.

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Visioneer 9750 Installation Guide Page 54