9A-20
A-63054 February 2004
Additional settings for the
Color Scanner 3590C and
Color Scanner 4500
When color scanning with the Color Scanner 3590C or Color Scanner 4500,
the settings for
Noise filter
and
Dither
are not used. In addition,
Threshold
and
Contrast
are not used unless you are binarizing color images.
JPEG Quality
—JPEG quality controls the amount of file compression
performed by the scanner when producing JPEG images. Enter a value
between 10 and 255. A higher setting increases image compression (resulting
in smaller file sizes), but decreases image quality. A lower setting decreases
image compression (resulting in larger file sizes), but improves image quality.
The following settings can be used as guidelines.
Binarization of color images
—MultiStream™ processing (where a black-
and-white image is produced for each color image) can be achieved by
enabling one of the Binarization options. When enabled, binarization is done
on-the-fly during scanning. Select one of the following from the drop-down list:
• No Binarization—disables binarization of color images in the image setup.
• Best Binarization/Low Speed—enables binarization of color images in the
image setup. Binarization is done in software on the host PC and produces
the best binarization results at low speed (i.e., at approximately half of the
rated speed on the Color Scanner 4500 running in duplex mode).
• Good Binarization/High Speed—enables binarization of color images in the
image setup. Binarization is done in software on the host PC and produces
good binarization results at high speed (i.e., at approximately the rated
speed of the Color Scanner 4500 running in duplex mode; assumes a 750
MHz processor on the host PC).
• Hardware – Best Binarization/High Speed—enables binarization of color
images in the image setup. Binarization is done in hardware and produces
the best binarization results at high speed. A THR2 board (from Picture
Elements) is required to be installed on the host PC. For more information
on THR2 and how to acquire a THR2 board, refer to the Picture Elements
web site at www.picturel.com.
Image Quality
Setting
Good
200
Better
120
Best
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Summary of Contents for 8342693 - Capture Software - PC
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