CCITT Group 4
From Just Solve the File Format Problem
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[[CCITT Group 4]] is a widely used lossless compression algorithm used for bitonal images. It is also known as '''T6''', '''T.6''', '''Fax4''', '''G4''', or '''ITU-T Fax Group 4'''. It is frequently used in [[TIFF]] images created by scanning bitonal images. | [[CCITT Group 4]] is a widely used lossless compression algorithm used for bitonal images. It is also known as '''T6''', '''T.6''', '''Fax4''', '''G4''', or '''ITU-T Fax Group 4'''. It is frequently used in [[TIFF]] images created by scanning bitonal images. | ||
Revision as of 21:13, 25 March 2013
Contents |
Overview
CCITT Group 4 is a widely used lossless compression algorithm used for bitonal images. It is also known as T6, T.6, Fax4, G4, or ITU-T Fax Group 4. It is frequently used in TIFF images created by scanning bitonal images.
It uses Modified Modified READ (MMR) compression. MMR is probably another synonym for CCITT Group 4.
Related formats
In a TIFF file, compression type 4 is CCITT Group 4.
Other formats that can use CCITT Group 4 compression include PDF and SPIFF.
