JPEG

JPEG is an image format defined by the Joint Photographic Experts Group, which defined the original format and its wavelet-based JPEG2000 variant.

I will spare you the details of how the original JPEG format uses Discrete Cosine Transforms (I once wrote a baseline decoder for it), and simply point you toward a few interesting resources out there:

.table(compact)
|. Date |. Link |_. Notes |
| Jul 18 | judge | A tool to compare visually identical images and select the best quality one |
|/4. Older | JPEG | The JPEG Group |
| JPEG/JPEG2000 Overview | An excellent overview in PDF format |
| JasPer | a Part-1/ISO/IEC 15444–1 compliant JPEG 2000 implementation |
| JJ2000 Java |