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User’s Manual
38
4.3.2
Other Image Options
Binarization This is the process of converting a
grayscale or color image to a bi-tonal
image. There are several different
methods of performing this conversion.
Options: Dynamic Threshold,
Dynamic Threshold (AD), Fixed
Processing, Halftone 1~5, Error
Diffusion.
Dynamic Threshold: Selecting
Dynamic Threshold allows the scanner
to dynamically evaluate each document
to determine the optimal threshold value
to produce the highest quality image.
This is used to scan mixed document
containing faint text, shaded background,
or color background with a single setting.
If Dynamic Threshold is selected,
Threshold, Brightness, and Contrast are
not available.
Dynamic Threshold (AD): Selecting
Dynamic Threshold (AD) to perform
the enhanced mode of the Dynamic
Threshold feature. However, using this
mode may slow down your scanning
speed.
Sensitivity of Dynamic Threshold
Occasionally your scanned image may
contain small dots or speckles. To remove
these spots, increase the sensitivity value
by moving the bar to the right. The value
ranges from 1 to 30. The default is 20.
Summary of Contents for FL-1507B
Page 1: ...Sheet fed Scanner User s Manual Regulatory model FL 1507B Avision Inc ...
Page 40: ...User s Manual 31 ...
Page 49: ...User s Manual 40 Error Diffusion Image Dynamic Threshold Dynamic Threshold AD ...
Page 52: ...User s Manual 43 Normal Photo Document Threshold 230 Normal Photo Document Threshold 230 ...
Page 64: ...User s Manual 55 The Compression tab dialog box ...
Page 68: ...User s Manual 59 The Color Dropout dialog box ...