Advantage I-200 User's Guide download pdf (Page 23)

22 A-61520 April 2005

Filter Threshold  the value that is used to identify the color which will

be dropped out. This value is applied to the color area. Color with a

Red/Green/Blue component more than the entered value is dropped.

This setting determines how much of the selected color is dropped out.

A lower value will leave more of the selected color in, while a higher

value will drop more of the selected color out.

Background  this value will be substituted in the grayscale (pre-

thresholded) image for the color being removed. Therefore, this value

should be higher than the threshold value selected on the Imaging tab

for this pixel to become the background color. For example, if you are

scanning a white document with a green form and you have selected a

bi-tonal threshold value of 127, you should choose an electronic color

drop-out background value greater than 127 so the substituted pixel will

be white in the dropped-out image.

The Multifeed tab Multi-feed Detection aids in document processing by detecting

documents that may go through the feeder overlapped. Multi-feeds can

occur due to stapled documents, adhesives on documents, or

electrostatically charged documents.

Length Detection  choose the minimum length of the document that

can be scanned with a multi-feed being detected. The Display window

will show the size of the document as you change the value. You can

select to display this amount in Inches, Centimeters, Picas, Points,

of Points or Pixels. A value of 0 indicates no length detection.

Length detection is best used when scanning same-sized documents.

The maximum value is 17 inches for the i250/i260 Scanners with

64 MB. If your scanner is upgraded with 256 MB, the value is 26 inches.

The maximum value is 34 inches for the i280 Scanner.

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Advantage I-200 User's Guide Page 23