CCITT Group 4
From Just Solve the File Format Problem
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== References == | == References == | ||
* [http://www.digitalpreservation.gov/formats/fdd/fdd000136.shtml ITU-T Group 4 FAX Compression (T.6), from Library of Congress resource on Sustainability of Digital Formats] | * [http://www.digitalpreservation.gov/formats/fdd/fdd000136.shtml ITU-T Group 4 FAX Compression (T.6), from Library of Congress resource on Sustainability of Digital Formats] | ||
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Revision as of 16:30, 27 February 2013
CCITT Group 4 is a widely used lossless compression algorithm used for bitonal images. It is also known as T.6, Fax 4, and ITU-T Fax Group 4. It is frequently used in TIFF images created by scanning bitonal images.It is based on Modified Modified READ (MMR) compression.
Contents |
Related formats
In a TIFF file, compression type 4 is CCITT Group 4.
In theory, CCITT Group 4 can be used in SPIFF files (compression type 3).
