9A-24
A-63054 February 2004
Automatic Threshold
—when Automatic Threshold is enabled, image
processing parameters (e.g., Threshold and Contrast) are automatically set in
accordance with the scanning resolution. Any Threshold and Contrast settings
are ignored. Four options are available:
• Manual—Automatic Threshold is disabled. This is the default.
• Level 1—suitable for dark documents.
• Level 2—suitable for normal documents
• Level 3—suitable for light documents.
NOTES: Automatic Threshold is available only when None (binary mode) is
selected in Dithering.
When Automatic Threshold is enabled, all other imaging processing
parameters (i.e., Noise filter, Enhancement, and Gamma Control) are
ignored and therefore disabled.
When scanning in duplex mode, the Automatic Threshold setting for
the front and rear Image Setup must be the same. As a result, the
Automatic Threshold setting for the front Image Setup will be used for
both the front and rear images.
Gamma Correction
—this option is available only when Dithering is enabled.
Dithered data from the scanner is converted to output by a gamma correction
curve, which is the curve of the shade adjustment. There are two selections:
Normal and For CRT. When you are scanning mainly for the purpose
of viewing a picture on a computer screen, select For CRT. The default
is “Normal.”
Summary of Contents for 8342693 - Capture Software - PC
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