JPEG-2000

JPEG 2000 is a wavelet-based image compression standard. It was created by the Joint Photographic Experts Group committee in the year 2000 with the intention of superseding their original discrete cosine transform-based JPEG standard (created about 1991). The standardized filename extension is .jp2 for ISO/IEC 15444-1 conforming files and .jpx for the extended part-2 specifications, published as ISO/IEC 15444-2, while the MIME type is image/jp2.
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<image, file format> A potential successor to JPEG with better compression and multiresolution images. JPEG-2000 gives reasonable quality down to 0.1 bits/pixel (JPEG quality drops dramatically below about 0.4 bits/pixel).
(2001-12-02)