Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1997-01-17
1998-09-15
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Picture signal generator
358475, 358488, 358493, 358464, H04N 104
Patent
active
058087567
ABSTRACT:
An image reading apparatus for book-like document includes a height detecting device which detects a height of the document, a luminance detecting device which detects a luminance of a background portion of the document image, a gloss calculating device which calculates gloss of a surface of the document in accordance with the height and the luminance, a luminance calculating device which calculates luminance corresponding to a background portion of the document image in accordance with the gloss and the height, a selecting device which selects either the detected luminance or the calculated luminance, and a density correcting means for correcting a density of the image data in accordance with said selected luminance.
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Coles Sr. Edward L.
Lee Cheuk Fan
Minolta Co. , Ltd.
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