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C-4
Plus Indexing — the capability of the scanner to advance across
chapter boundaries.
Portrait — image or paper orientation in the shape of a conventional
portrait, where height is greater than width.
Postset Code — See Trail End Code.
Preset —setting the image counters of the scanner to a specified value.
The image address count can be preset from the scanner keyboard, by
Image Management Code on the microfilm, or by sending a command
string to the scanner.
Preset Code — provides the scanner with the information needed to
recognize the first image address on the roll of microfilm. It consists of:
•
Start image mark
•
Level information
•
Postset Code (duo film only), which enables the scanner to search
duo film in Channel B at the same time as Channel A.
Random Batch Code — Image Address Setup Code is called Random
Batch Code when used among document batches on a roll of microfilm.
It identifies a change of levels caused by an image address change, a
batch change, or the filming or refilming of a document or batch of
documents out of their normal sequence.
Registers — a portion of computer memory set aside for the storage of
an image address, command, and/or text message. Information stored
in a sequence of registers can be recalled and processed automatically
by computer command or manually by an operator at the scanner.
Retrieval — the action of finding stored information, such as locating
and displaying microfilm images using the scanner.
Scrolling the ability to continuously move images on the film until the
desired image is found.
Search Program — a set of instructions that define how the scanner
counts different size image marks in a given application.
Sharpening Filter an algorithm that sharpens or softens the edges
of information within an image.
Simplex — microfilm which contains images of only one side of each
document as compared to duplex microfilm, which contains images of
both the front and back of each document.
SMTP Simple Mail Transfer Protocol.
TIFF — Tagged Image File Format.
Trail End Code — enables the scanner to search duo film in Channel B
at the same time as in Channel A (also called Postset Code).
A-61133 March 2003
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