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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 fil-
ter should be used with gamma correction (see page 8-7) 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 8-9). 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 8-5) 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
W - Histogram Ship
A histogram gives a quick picture of the tonal range of an image, or key type. A low-key image has detail concentrated in
the shadows; a high-key image has detail concentrated in the highlights; and an average-key image has detail concentrated
in the midtones. This modifier ships the histogram for an image.
0W Don’t ship histogram (default)
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:
Example of Blur Image Off (0V): Example of Blur Image On (1V):
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