N3680 Decoded Engine User Guide 137
This filter typically provides better JPEG compression than the standard E - Edge
Sharpen command (see page 138). This filter also works well when shipping pure
black and white images (1 bit per pixel). The optimal setting is 26U.
Example: .
V - Blur Image
Smooths transitions by averaging the pixels next to the hard edges of defined lines
and shaded areas in an image.
Example:
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
131) to 22e. Range: 0-255
Document Image Filter
set to 0U:
Document Image Filter
set to 26U:
0V Don’t blur (default)
1V Blur
Blur Image Off (0V): Blur Image On (1V):
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