Image analysis – Image compression or coding
Reexamination Certificate
2004-12-20
2009-08-25
Ahmed, Samie A. (Department: 2624)
Image analysis
Image compression or coding
C382S250000, C382S251000, C382S262000, C375S240120
Reexamination Certificate
active
07580579
ABSTRACT:
In a method of digital image compression, the spatial frequency content of a digital image is characterized using a relatively sparse sampling of data blocks from the image, and a quantization table is constructed based on the characterization of the spatial frequency content.
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Miller Casey L.
Wang Yu-wei
Ahmed Samie A.
Bayat Ali
Hewlett--Packard Development Company, L.P.
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