Image readout apparatus
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United States of America Patent
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-
Aug 9, 1988
Grant Date -
N/A
app pub date -
Feb 7, 1986
filing date -
Feb 15, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image readout apparatus includes a readout unit for reading an original image; a storage unit for storing a signal obtained by the readout unit while reading an image having a predetermined reflectance; a hold unit for holding the maximum value of reflectance of the original image while the readout unit reads the original image; and a quantization unit for controlling an output signal level of the storage unit in accordance with the maximum value and quantizing a readout signal of the original image in accordance with the output signal level.
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