ADJUSTING THE IMAGE WITH THE SCAN MANAGER 25
■Black and White—scans in black and white. The scanning pixels are all the same size and are either black or white. Use this setting for letters, memos, pen and ink drawings and other black and white material. This setting produces the smallest file size for scanned items.
■Halftone—scans the image so it appears to consist of gray tones. A pop-up menu appears so you can choose one of the halftone options. Notice that the preview image changes as you select each option so you can see which one is best for scanning. Halftones produce simulated gray tones by using black and white pixels of different sizes and is often used to produce newspaper and
Halftone Example | magazine images. Use this setting for lower resolution black and |
| white images. The halftone settings also produce small file sizes. |
■8-BitGray—scans the image using up to 256 true shades of gray. Use this setting to scan black and white photographs and other higher quality black and white images. You can also scan a color photo with this setting to turn its colors into gray shades. The file size is about one third the size of a color scan.
■24-BitColor—scans the image in full color. Use this setting to scan color photographs and other color images. The file size is the largest of the color mode options.
Note: You can see the file size at the bottom of the Scan Manager.
RESOLUTION
Resolution determines the amount of detail you can see in the scanned image. The resolution setting for a scan is in dots-per-inch (dpi). The higher the resolution, the finer the details, however, higher dpi settings also take longer to scan and produce larger files sizes. Usually the higher resolution settings are used for precision work, such as photographs or fine artwork.
■Click the Resolution drop-down menu and select the resolution for the item.
The resolution settings on your Visioneer 9650 scanner range from 50 dpi to 1200 dpi.
