CD Optical Storage Glossary of Computer Terms (Letter J)

Joint Bi-level Imaging Group. A working group established to develop a standard for compressing bi-level images such as black-and-white photographs or pages of text. JBIG is a loss less compression technique.

Joint Photographic Experts Group. A standard for compression algorithms for digitizing still photographic images. JPEG compression ratios may range from 10:1 to 80:1, but it is a continuous trade-off between image quality and speed of delivery and storage capacity. Multimedia platforms are being equipped with special boards or chips implementing JPEG compression standard based on the DCT algorithm. There are also software solutions available to accomplish JPEG compression.