8 - 14
2020/4820/4820 i User’s Guide
This filter typically provides better JPEG compression than the standard E -
Edge Sharpen command (see
page 8-15
). This filter also works well when
shipping pure black and white images (1 bit per pixel). The optimal setting
is 26U.
0U
Document image filter off
(default)
26U
Apply document image filter for typical document image
nU
Apply document image filter using grayscale threshold n. Use
lower numbers when the image contrast is lower. 1U will have a
similar effect to setting
E - Edge Sharpen
(page 8-7) to 22e.
Range: 0-255.
V - Blur Image
Smooths transitions by averaging the pixels next to the hard edges of
defined lines and shaded areas in an image.
0V
Don’t blur
(default)
1V
Blur
Example of Document Image
Filter set to 0U:
Example of Document Image
Filter set to 26U:
Example of Blur Image Off (0V):
Example of Blur Image On (1V):
Summary of Contents for 2020
Page 1: ... User s Guide 2020 4820 4820 i 2D Cordless Imaging System ...
Page 7: ...Base Compliance Label locations Item Number Serial Number and Revision Information location ...
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Page 204: ...9 14 2020 4820 4820 i User s Guide Exit Selections Save OCR Template Discard OCR Template ...
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