ImageGear for C and C++ on Windows v20.3 - Updated
JBIG2 Compression
User Guide > File Formats and Compressions > Compressions > JBIG2 Compression

RLE Compression

Full Name JBIG2 (bilevel image compression)
Compression ID IG_COMPRESSION_JBIG2 = 19
ImageGear Component JBIG2
Bit Depth 1 BPP
File Formats JBIG2

Comments:

To support the JBIG2 format, attach the ImageGear JBIG2 Component to Core ImageGear. See Attaching Components.

The JBIG2 compression algorithm searches for groups of pixels arranged in similar shapes and uses them to define a symbol. Rather than retaining information on the placement of each pixel, a table is created for common symbols. This allows users to see incredible reductions in file sizes. Compression rate matches 100:1 compared to uncompressed black and white TIFFs.

 

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