| 摘要 |
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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