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A-63055 December 1999 8
Dither
Dithering is a technique for reproducing halftone images, such as a
photo, in binary mode.
Two pixel levels are used to represent the entire grayscale, thereby
reducing the levels of gray required displaying an image. Using a
dithering pattern requires less memory than using a grayscale mode.
Choose a dithering method in the Dither drop-down list box: None,
Bayer Dither 64 (64 steps), Bayer Dither 16 (16 steps), 45 degree
Halftone, 0 degree Halftone, Error Diffusion, and User Download.
Original Bayer Dither 64 Bayer Dither 16
45 deg. Halftone 0 deg. Halftone Error Diffusion
NOTE: You can specify a *.PXH file that uses a different dither pattern.
To do this, choose “User Download” in the
Dither
drop-down
list box. Click on the
More
button in the Scanner Settings
dialog box to access the Scanner Special Features dialog box.
Click on the
Dither
button in the Download From File group
box in the Scanner Special Features dialog box and select a
dither pattern file in the file selection box.