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US 2001/0043753 A1Published application
System for compression of digital images comprising low detail areas
AssigneeHewlett-Packard Company
InventorsRANDALL E. GROHS, BRENT M. BRADBURN
Life of this patent
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Abstract
System for compression of digital images comprising low detail areas.
Claims5
An apparatus for compressing a digital image comprising:
- (a) means for decomposing said digital image into a set of tiles and for classifying a tile from said set as a low-detail tile;
- and
- (b) means for transform coding each tile in said set of tiles connected to said decomposing means;
- said transform coding means responsive to said decomposing means classifying a tile from said set of tiles as a low detail tile to determine at least one average pixel value from said low detail tile and to create transform coded data for said tile based upon said at least one average pixel value.
1 more element
Dependencies are inferred from the claim text.