JBIG

From Just Solve the File Format Problem
Revision as of 17:54, 16 April 2013 by Jsummers (Talk | contribs)

Jump to: navigation, search
File Format
Name JBIG
Ontology
Extension(s) .jbg .jbig
Released 1993

Contents

Overview

JBIG, also called JBIG1, is a lossless image compression algorithm and data format. The compression algorithm is based on arithmetic coding.

It is named after the organization which developed the format, Joint Bi-level Image experts Group.

JBIG is primarily used for bi-level images, but an image may have multiple "planes" which can be combined and interpreted as grayscale, or presumably even full color.

JBIG works best when contained in some other file format. It can be stored in a file by itself, but that's risky, because the specification does not fully describe how to interpret the colors of the pixels. Reasonably-portable JBIG files are probably limited to bi-level and grayscale, and even then, don't be surprised if black and white get reversed.

See also

Specifications

Software

External Links

Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox