Image processing method for processing an image signal differently depending on the range of an image characteristic thereof relative to the range within which an output device can reproduce the image characteristic
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United States of America Patent
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Mar 15, 1988
Grant Date -
N/A
app pub date -
Mar 12, 1986
filing date -
Mar 21, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present disclosure relates to a method of processing an image signal in which one image characteristic, such as luminance density or color saturation, may have a range incapable of reproduction by an output device due to limitations inherent in such device. In the disclosed method the range of the image characteristic for one image frame is detected and compared to the range that the output device can reproduce. Depending on the result of the comparison, the input image signal is processed differently; for example, the image signal may be converted so that the range of the image characteristic is shifted or compressed, or it may not be converted at all.
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