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Performance considerations for the application of the lossless browse and residual modelA hybrid lossless compression model employing both the (lossy) JPEG DCT algorithm and one of a selection of lossless image compression methods has been tested. The hybrid model decomposes the original image into a low-loss quick-look browse and a residual image. The lossless compression methods tested in the model are Huffman, arithmetic, LZW, lossless JPEG, and diagonal coding. For both the direct and the hybrid application of these lossless methods, the compression ratios (CR's) are calculated and compared on three test images. For each lossless method tested, the hybrid model had no more than a nominal loss in compression efficiency relative to the direct approach. In many cases, the hybrid model provided a significant compression gain. When used in the hybrid model, lossless JPEG outperformed the other lossless methods over a broad range of browse image qualities.
Document ID
19940023753
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Abbott, Walter D., III
(Naval Postgraduate School Monterey, CA, United States)
Kay, Robert T.
(Naval Postgraduate School Monterey, CA, United States)
Pieper, Ron J.
(Naval Postgraduate School Monterey, CA, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1994
Publication Information
Publication: NASA. Goddard Space Flight Center, The 1994 Space and Earth Science Data Compression Workshop
Subject Category
Computer Programming And Software
Accession Number
94N28256
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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