ImageGear for .NET
CCITT Group 3 Compression
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ImageGear for .NET User Guide > ImageGear Imaging Formats Reference > ImageGear Supported Compressions Reference > CCITT Group 3 Compression

Glossary Item Box

Full Name CCITT Group 3
Compression ID ImGearCompressions.CCITT_G3 = 3
ImageGear Assembly ImageGear21.Core Assembly
Bit Depth 1
File Formats BTR, IBM IOCA, IBM MO:DCA, IMT, LV, NCR, Adobe PDF, Adobe PS, TIFF
IG Platforms Support WIN32, WIN64, Unix, Unix64, .NET, .NET64, Silverlight, MAC

Comments

This is a 1-D version of the CCITT Group 3 compression scheme. It uses a static table of values to assign codes to run lengths. Frequently occurring run lengths are given smaller codes. (The most frequent are usually black runs of 2 or 4 pixels).  

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