History of ISO International Standard 10918 (“The original JPEG standard”)
Started as a European consortium
CCITT and ISO working groups combined in 1985 (“Joint Photographic Experts Group”)
ISO IS 10918-1 (Requirements and Guidelines): published by ISO/IEC in 1994
- Lossy
- 8 and 12 bit, DCT-based
- Sequential, Progressive, Hierarchical
- Huffman, Arithmetic encoding
- Lossless
- 4-16 bit, DPCM-based
- Huffman, Arithmetic encoding
- Also accepted as ITU-T Recommendation T.81.
ISO IS 10918-2 (Compliance Testing): published 1995
- Compliance testing methodology and data for most modes of JPEG
ISO IS 10918-3 (Extensions): published 1997
- Lossy extensions: Tiling, Variable Quantization (Rate Control), Selective Refinement
ISO IS 10918-4 (Profiles): published 1999
- Registration of a number of standard JPEG & file format (“SPIFF”) profiles
ISO 10918 now referred to as “JPEG-1” in light of upcoming JPEG-2(000)