3.Click the 
Auto Locate button to automatically set the scan area for your image. (To scan only part of your image,
see page 75.)
4.To optimize your image automatically, click the 
Auto Exposure button. Your TWAIN software adjusts color,
tone, contrasts, and highlights for you. Skip to step 8 if you choose this setting.
5.To adjust the highlights and contrast in your image, click the 
Image Controls button. You see the following box:
Lighten or darken your image.
Adjust the midtones.
Adjust the brightest parts of the image.
Adjust the darkest parts of the image.
Adjust gray shades so that they contain more black or white (mainly for text in OCR).
Scanning 73