World's Leading Open Source JPEG 2000 Codec

Features

• support for new High Throughput JPEG 2000 (HTJ2K) standard
• fast random-access sub-image decoding using TLM and PLT markers
• full encode/decode support for ICC colour profiles
• full encode/decode support for XML,IPTC, XMP and EXIF meta-data
• full encode/decode support for monochrome, sRGB, palette, YCC, extended YCC, CIELab and CMYK colour spaces
• full encode/decode support for JPEG,PNG,BMP,TIFF,RAW,PNM and PAM image formats
• full encode/decode support for 1-16 bit precision images

Performance

Below is a benchmark comparing Kakadu 8.05, Grok 9.2 and OpenJPEG 2.4 on the following workflows:

1. compress image using many small tiles
2. decompress full large single-tiled image of Mars
3. decompress region {1000,1000,5000,5000} from large single-tiled image of Mars

• test system : 24 core / 48 thread AMD Threadripper running Ubuntu 20.04 with 5.8 kernel
• codecs were configured to use all 48 threads
• timing measured in seconds

Test	Kakadu	Grok	OpenJPEG
1	0.17	0.34	1.64
2	9.81	15.85	38.57
3	0.12	0.17	0.88

Library Details

• INSTALL
• WIKI
• LICENSE

Current Build Status