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Title: Population attribute compression

An image population having a large number of attributes is processed to form a display population with a predetermined smaller number of attributes that represent the larger number of attributes. In a particular application, the color values in an image are compressed for storage in a discrete look-up table (LUT). Color space containing the LUT color values is successively subdivided into smaller volumes until a plurality of volumes are formed, each having no more than a preselected maximum number of color values. Image pixel color values can then be rapidly placed in a volume with only a relatively few LUT values from which a nearest neighbor is selected. Image color values are assigned 8 bit pointers to their closest LUT value whereby data processing requires only the 8 bit pointer value to provide 24 bit color values from the LUT.
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  1. (Los Alamos, NM)
Issue Date:
OSTI Identifier:
Regents of University of California, Office of Technology (Alameda, CA) LANL
Patent Number(s):
US 5467110
Contract Number:
Research Org:
Los Alamos National Laboratory (LANL), Los Alamos, NM
Country of Publication:
United States
population; attribute; compression; image; attributes; processed; form; display; predetermined; represent; larger; particular; application; color; values; compressed; storage; discrete; look-up; table; lut; space; containing; successively; subdivided; volumes; plurality; formed; preselected; maximum; pixel; rapidly; placed; volume; relatively; nearest; neighbor; selected; assigned; bit; pointers; closest; value; whereby; data; processing; requires; pointer; provide; 24; color values; particular application; data processing; whereby data; color value; look-up table; image population; display population; /345/375/