Tonal conversion method for pictures
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United States of America Patent
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-
Mar 7, 1989
Grant Date -
N/A
app pub date -
Mar 9, 1988
filing date -
Mar 11, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An original continuous-tone picture is converted into a halftone picture, which is to be reproduced, on the basis of pictorial information from the original picture. The information is processed in such a way that the base density of a desired control point on the original picture and the halftone intensity of a corresponding control point on the halftone picture are correlated in accordance with a specific conversion formula.
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