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Term: Contrast stretching

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Term: Contrast stretching

Definition:
Contrast stretching is an informal nickname for an enhancement that may be considered for derivative images of documents (and possibly some drawings); its simplest definition is "making paper lighter and writing darker."
Category:
Image
Resource:
Library of Congress Manuscript Digitization Demonstration Project (see esp. Section 6)
http://memory.loc.gov/ammem/pictel/index.html
See also: