How does JPEG work?

In the February 2008 issue of Notices of AMS, David Austin explains how JPEG achieves the compression (pdf); apparently, the algorithm is based on discrete cosine transform (DCT) and not discrete Fourier transform (DFT); and, JPEG 2000 uses discrete wavelets transform. An interesting article!

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One Response to “How does JPEG work?”

  1. "Wireless JPEG2000 Video and a Paper on How JPEG2000 Works" in Disruptive Library Technology Jester Says:

    [...] The second item is a paper in the February 2008 issue of Notices of AMS where David Austin explains how JPEG and JPEG2000 compress image data. It is a short (just over three pages) look at the compression algorithms from a mathematical point of view. (This comes via a posting in Entertaining Research.) [...]

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