Image processing
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United States of America Patent
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May 1, 1990
Grant Date -
N/A
app pub date -
Sep 10, 1987
filing date -
Sep 12, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for processing original data defining the values of pixels of an original colored image represented in a spatial domain by two or more color separations each color separation defining the respective color component content of pixels arranged in a two dimensional array extending in X and Y directions. The apparatus comprises a store 6 for storing the original data; and a frequency transform circuit 8 for performing a three dimensional transformation on the store representation to generate transformed data representing the original image in three dimensional frequency space. Two of the three dimensions represent the variation in pixel value in the X direction and the Y direction respectively and the transformed data has a single zero order frequency term.
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Cited Art Landscape
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