Image memory device and method of operating same
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United States of America Patent
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-
Dec 31, 1996
Issued Date -
N/A
app pub date -
Apr 29, 1994
filing date -
Apr 16, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An image memory device is so adapted as to make it possible to use an image pick-up device having any characteristic and a display unit having any characteristic. The image memory device includes an input look-up table and an output look-up table. Data for performing a reverse gamma-correction is set in the input look-up table in advance in dependence upon the image pick-up device used. By virtue of the reverse gamma-correction, the image data is provided with linear characteristics. The reverse gamma-corrected data is stored in the memory. Data for performing a gamma correction is set in the output look-up table in advance in dependence upon the display unit used.
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