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dc.contributor.authorAbbott, Walter D., III
dc.contributor.authorKay, Robert T.
dc.contributor.authorPieper, Ron J.
dc.dateApr 01, 1994en_US
dc.date.accessioned2018-09-27T00:06:45Z
dc.date.available2018-09-27T00:06:45Z
dc.date.issued1994-04
dc.identifier.citationNASA. Goddard Space Flight Center, The 1994 Space and Earth Science Data Compression Workshop; p. p 43-54en_US
dc.identifier.other19940023753
dc.identifier.urihttp://hdl.handle.net/10945/60114
dc.identifier.urihttps://ntrs.nasa.gov/search.jsp?R=19940023753
dc.descriptionApproved for public release, distribution unlimiteden_US
dc.description.abstractA 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.en_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.en_US
dc.titlePerformance considerations for the application of the lossless browse and residual modelen_US
dc.typeConference Paper
dc.contributor.corporateUnspecified Center
dc.subject.authorALGORITHMSen_US
dc.subject.authorASTRONOMICAL PHOTOGRAPHYen_US
dc.subject.authorDATA COMPRESSIONen_US
dc.subject.authorIMAGE PROCESSINGen_US
dc.subject.authorLOSSLESS EQUIPMENTen_US
dc.subject.authorMATHEMATICAL MODELSen_US
dc.subject.authorCOMPRESSION RATIOen_US
dc.subject.authorIMAGE RECONSTRUCTIONen_US


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