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1S ship every pixel
(default)
2S ship every 2nd pixel, both horizontally and vertically
3S ship every 3rd pixel, both horizontally and vertically
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 should be used with
gamma correction (see page 8-10), with the scanner in a stand, and the
image captured using the command:
IMGSNP1P0L168W90%32D
This filter typically provides better JPEG compression than the standard E -
Edge Sharpen command (see page 8-13). 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
n
U 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.
Example of Pixel Ship set to 1S:
Example of Pixel
Ship set to 2S:
Example of Pixel
Ship set to 3S:
Example of Document
Image Filter set to 0U:
Example of Document
Image Filter set to 26U: