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