57VISIONEER PHOTOPORT 7700 USB SCANNER INSTALLATION GUIDE
To adjust the resolution and sharpness:
1.To use one of the preset resolutions for typical scanned items, click one of the options in the list.
For example, to set the resolution for scanning a business card, select Business Card (OCR). That setting is sufficient for your optical character recognition (OCR) application to read the small print on a business card.
2.To set the resolution manually, drag the Resolution slider to the left to decrease the resolution or to the right to increase it.
3.To adjust the sharpness, drag the Fidelity slider to the left to decrease the sharpness or to the right to increase the sharpness.
You can also type a number directly into the sharpness setting box, or click the up and down arrows next to the box to increase or decrease the setting.
To return the settings to their original amounts, click Reset.
4.If you expect items to have moire patterns when scanned, click Reduce Moire to scan the image and limit or eliminate the amount of the moire patterns.
Moire patterns are wavy, rippled lines that sometimes appear on the scanned images of photographs or illustrations, particularly newspaper and magazine illustrations.
ADJUSTING THE BRIGHTNESS AND CONTRAST
Sometimes an item is scanned with the brightness and contrast set to be too light or too dark. For example, a note written with a light pencil may need to be scanned darker to improve legibility.