Overview of JPEG-2000 Requirements
Superior lossy performance at low bit rates (below ~0.25 bpp)
Integrated lossy and lossless operation
- In particular, J2K will offer scalable lossy-to-lossless decoding options
Progressive transmission
- Progressive w.r.t. spatial resolution and/or pixel precision
Broader range of image types and content than JPEG-1
- Image dimensions larger than 64K pixels
- Pixel precision anywhere from 1 to 16 bits or more, vs. just 8 or 12
- Multiple-component imagery (up to 256 components)
- Mixed-content (e.g., continuous-tone and bi-level); computer-generated
Random codestream access for region-of-interest (ROI) coding
Better robustness to codestream bit errors
Content-based and IPR metadata; image authentication features