Background Prescan - Microtek ScanMaker i700 User Manual

Menu bar
screen ("screen" meaning your main monitor), 75% screen, 50%
screen, and Fit Preview Window. The larger the size, the higher the
prescan resolution. The maximum prescan resolution is the
scanner's optical resolution.

Background Prescan

If checked, the background prescan function is enabled. You can
assign a number of scan jobs to execute a prescan while carrying
out other jobs in the meantime (e.g., performing color correction to
other scan jobs). If unchecked, this function is disabled.
To change the margin or size of the prescan image:
1. Go to the Preferences menu in the Preview window, and
choose Prescan Setup.
2. When the Prescan Setup dialog box appears, specify your
choices.
Invert
This command applies to an image an effect similar to that of a
negative. The Invert effect is applied to all scan jobs, not just the
selected scan job.
When an image is inverted, the brightness value of each pixel is
converted to the inverse value on the 256-step color values scale.
For example, a pixel in a positive image with a value of 255 is
changed to 0, and a pixel with a value of 5 is changed to 250.
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