Image processing apparatus and method, program, and storage...

Image analysis – Image compression or coding – Transform coding

Reexamination Certificate

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C382S248000, C382S251000

Reexamination Certificate

active

07127119

ABSTRACT:
An apparatus has a one-dimensional DCT transformer for applying the one-dimensional orthogonal transforms to n inputs and outputting n coefficients, a transposition converter for transposing n×n coefficients output from the one-dimensional DCT transformer and outputting every n outputs, and a multiplexer for selecting one output of the n outputs from the transposition converter or one output of the n outputs from the one-dimensional DCT transformer. The apparatus further includes a selector for selecting data as a combination of one output selected by the multiplexer and remaining (n−1) outputs, which are not input to the multiplexer, of the n outputs from the transposition converter, or the input image data, and supplying the selected data as n data to the one-dimensional DCT transformer.

REFERENCES:
patent: 5848194 (1998-12-01), Ishizuka et al.
patent: 6031959 (2000-02-01), Hamai et al.
patent: 6351570 (2002-02-01), Kobayashi
patent: 6664902 (2003-12-01), Andrew et al.
patent: 6819803 (2004-11-01), Mitchell et al.
patent: 6915014 (2005-07-01), Honma et al.
patent: 02001078190 (2001-03-01), None
de Queiroz, “Processing JPEG-Compressed Images and Documents”, IEEE vol. 7, No. 12, Dec. 1998, pp. 1661-1672.

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