Vuquest 3320g User Guide 157
This filter typically provides better JPEG compression than the standard E - Edge 
Sharpen command (see page 157).  This filter also works well when shipping pure 
black and white images (1 bit per pixel).  The optimal setting is 26U.
• 0UDocument image filter off (default)
• 26UApply document image filter for typical document image
• nUApply 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 152) 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.    
•0VDon’t blur (default)
•1VBlur
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.
• 0WDon’t ship histogram (default)
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):