Threshold
Used to convert a grayscale image to a
bi-tonal image. The value ranges from 0 to
255. A low threshold value produces a lighter
image, and can be used to subdue
backgrounds and subtle, unneeded
information. A high threshold value produces
a darker image, and can be used to help pick
up faint images.
Adjust the threshold setting by dragging the
Threshold sliding bar to the left or right to
achieve the desired threshold setting.
200 dpi,
Threshold:80,
Brightness: 0
200 dpi,
Threshold:170,
Brightness: 0
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Summary of Contents for DT-0603H
Page 1: ...A3 High Speed Document Scanner User s Manual Regulatory model DT 0603H Avision Inc ...
Page 30: ...B W Gray Color 24 ...
Page 43: ...The Compression tab dialog box 37 ...
Page 46: ...Remove Blue Threshold 20 Background 255 Remove Blue Threshold 20 Background Level 210 40 ...
Page 53: ...Example Additional Length Detection Set Additional Length to be 2 02 inches 2 02 47 ...
Page 79: ...ADF Roller ADF Pad ADF Unit Figure 6 1 Clean the ADF unit 74 ...