.J2K File Extension

JPEG 2000 Image File

J2K files are images compressed using wavelet instead of DCT compression. This file format is used by JPEG 2000 files to store metadata in XML unlike JPEG using EXIF. J2K files support 15-bit color, a...

General Information

Title J2K File Extension
Extension .j2k
Full Form JPEG 2000 Image File
File Type Raster Image File
Developer Joint Photographic Experts Group
MIME Type image/jp2

File Function

Primary Function Store image
Additional Functions Compression, Lossy or lossless
Features Scalable, High-quality

File Characteristics

Quality High resolution
Supports Layers No
Supports Transparency Yes
Editable Yes

Use Cases

Digital Photography Yes
Medical Imaging Yes
Remote Sensing Yes

Security and Practices

Security Risks Low
Best Practices Regular updates, Scanning

Historical/Version Information

Initial Release 2000
Latest Update ISO/IEC 15444-1:2004

Associated Types

Similar Extensions .jp2, .jpx, .jpm, .mj2

Software Compatibility

Software Usage Policy OS Compatibility
Adobe Photoshop Subscription Windows, Mac
GIMP Free Windows, Mac, Linux
IrfanView Free Windows