method


	When scanning, you always have the choice of what kind of image you want to capture. For line art, you would usually choose 1-bit mode (although there are times when it is better to scan using 8-bit mode , see section xxx). For B&W photographs, you generally would scan using 8-bit mode. There are times, however, when you may want to scan a photograph in Halftone (also known as Dither) mode.


Scanning in 8-bit gives you the most flexibility, since you can always later output using dithered or threshold methods, if necessary.
Threshold scanning is useful when you want the unique look of a high contrast image. Many designers use this effect for backgrounds and other graphic shapes in their designs.
Halftone scanning refers to a 1-bit mode where the effect of continuous tone is achieved using a dithered pattern of small black dots representing various shades of grey. The advantage is smaller file size, and in some cases, sharper-looking images.