Honeywell 8680i User Manual page 181

The smaller number of pixels shipped, the smaller the image, however, after a cer-
tain point the image becomes unusable.
Example:
U - Document Image Filter
Allows you to input parameters to sharpen the edges and smooth the area between
the edges of text in an image. This filter typically provides better JPEG compression
than the standard E - Edge Sharpen command (see
works well when shipping pure black and white images (1 bit per pixel). The optimal
setting is 26U.
Example:
8680i User Guide
1S ship every pixel (default)
2S ship every 2nd pixel, both horizontally and vertically
3S ship every 3rd pixel, both horizontally and vertically
Pixel Ship set to 1S:
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
Document Image Filter set to 0U:
Pixel Ship Pixel Ship
set to 2S: set to 3S:
(page 161) to 22e. Range: 0-255.
Document Image Filter set to 26U:
Pixel Ship
set to 4S:
page 168). This filter also
167