IMAGE READING APPARATUS FOR DETECTING END PORTION OF FRONT END OR REAR END OF MEDIUM
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United States of America
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Issued Date -
Apr 14, 2022
app pub date -
Sep 13, 2021
filing date -
Sep 13, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
An image reading apparatus includes an imaging device to image a medium, and a processor to detect a plurality of edge pixels in a sub-scanning direction based on gradation values of a plurality of pixels of which positions in a main scanning direction are mutually the same and a distance between pixels in the sub-scanning direction is within a predetermined range in an input image acquired by imaging the medium by the imaging device, detect an end portion in the main scanning direction of a front end or a rear end of the medium based on a positional relationship between the detected plurality of edge pixels in the sub-scanning direction, and output information relating to the detected end portion.
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