Image processing device
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United States of America Patent
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Oct 4, 1994
Issued Date -
N/A
app pub date -
Jun 22, 1992
filing date -
Feb 6, 1989
priority date (Note) -
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status (Latency Note)
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Abstract
The type of color image is identified on the basis of a distribution of color information for each color. A plurality of different types of data compression algorithms prepared beforehand are changed according to the results of the identification. Preferably, the difference between the maximum value and the minimum value of each picture element of respective color separation data of a color image is determined, and further, a histogram of frequency of color information obtained for each color is determined. On the basis of the histogram, the type of the color image is identified by the fact that whether or not the histogram contains a peak greater than a predetermined value or whether or not the deviation of the histogram is greater than a predetermined value.
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