ISO/IEC 15444-16 defines how to store JPEG2000 compressed imagery into HEIF, however there are virtually zero tools for handling such files. The libheif open-source library is able to generate J2K in HEIF files.
There are no licensing restrictions tied to any of these images.
- Encapsulate HTJ2K images in HEIF.
- Write sofware to automate comformance testing.