Advantage I-200 User's Guide download pdf (Page 9)

8 A-61520 April 2005

When Adaptive Thresholding is selected, Contrast values may range

from 1 to 100.

Fixed Processing  used for black-and-white and other high contrast

documents. A single level is set to determine the black-and-white

transition. The threshold is programmable over the entire density range.

Fixed thresholding sets Contrast to 0. If Fixed Processing is selected,

Contrast is not available.

64-Level Bayer Dither, 64-Level 45 Degree Clustered Dot Screen

and 64-Level Dispersed Dot Screen  represent alternative

screening options to emulate gray.

Noise Filter  occasionally small dots or specks appear in the

background of a scanned image. These specks increase file

compression size and usually contain no image information. Using the

Noise Filter on documents containing very fine detail (e.g., the dot on

an "i" in 4-point type) may cause information to be lost. It is

recommended that you do not use Noise Filter when scanning

documents with text smaller than 7-point type.

Noise Filter can be used with bi-tonal images only and is front/rear

independent. Choose (none), Lone Pixel or Majority Rule.

• Lone Pixel reduces random noise on bi-tonal images by converting a

single black pixel surrounded by white to white or by converting a

single white pixel surrounded by black to black.

Fixed thresholding ATP

disabled

ATP enabled

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Advantage I-200 User's Guide Page 9