The Joint Photographic Experts Group (JPEG) is the working group of ISO, International Standard Organization, that defined the popular JPEG Imaging Standard for compression used in still image applications. The counter part in moving picture is the ``Moving Picture Experts Group" (MPEG).
JPEG compression is based on certain transform, either DCT or wavelet transform, due to the essential properties of orthogonal transforms in general:
- Decorrelation of the signal;
- Concentration of its energy.
- Transform Coding and JPEG Image Compression
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