PGX (JPEG 2000)

Revision as of 22:19, 5 February 2014

PGX is an uncompressed raster image file format used in JPEG 2000 conformance testing, and said to be used by the "JPEG 2000 Verification Model".

A PGX file stores only a single component, so it is limited to grayscale unless multiple PGX files are combined to make a color image.

Identification

PGX files begin with ASCII characters "PG ML", or "PG LM".

Specifications

• ITU-T Rec. T.803, §B.2.6: Reference components file format

Software

• OpenJPEG
• JasPer
• ImageMagick (uses JasPer)

Sample files

• http://code.google.com/p/openjpeg/source/browse/data/ ...