Image analysis – Color image processing – Compression of color images
Reexamination Certificate
2005-11-22
2005-11-22
Mehta, Bhavesh M. (Department: 2625)
Image analysis
Color image processing
Compression of color images
C382S232000, C375S240240
Reexamination Certificate
active
06968082
ABSTRACT:
A method and system thereof for processing image data. Uncompressed image data comprising a plurality of pixels representing an image to be rendered are received. The pixels are grouped into blocks such that the pixels in a block have substantially the same color values. The image data including the blocks of pixels are compressed and the compressed data are used as the basis for generating a rendered image. The maximum number of pixels per block is dependent on the resolution at which the image may be rendered; at higher resolutions, more pixels are included in a block than at lower resolutions. However, the maximum physical dimensions of rendered blocks in the rendered image are not changed as a function of resolution; the maximum block size in an image rendered at one resolution is the same as that at another resolution.
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Vaisey et al. in “Image Compression with Variable Block Size Segmentation,” IEEE Transaction on Signal Processing, vol. 40, No. 8, Aug. 1992, pp. 2040-2060.
Hewlett--Packard Development Company, L.P.
Hung Yubin
Mehta Bhavesh M.
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