Color Adjustment
From the Color Adjustment dialog box, you can adjust the hue, saturation and lightness of the image to be scanned. Click at any point in the color wheel, and the hue, saturation and lightness value of that point will apply to the image.
Dragging the triangular handle under the color bar can adjust the lightness of the color wheel and the image. In addition, you can also input the desired values in the Hue, Saturation and Lightness entry boxes directly to adjust the image effect. To set the lightness of the color wheel, you can drag the triangular handle under the bar with your mouse .
When you get the desired effect which is shown in the upper-right of the dialog box, press the OK button to confirm your settings and close the dialog box. If you are not satisfied with the adjustment, you can press the Reset button and the settings will return to the default so you can reset them. Otherwise, press the Cancel button to cancel your settings and close the dialog box.