Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-09-01
2009-06-23
Haskins, Twyler L. (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S518000
Reexamination Certificate
active
07551320
ABSTRACT:
An image processing apparatus of the present invention includes: a signal correction means which corrects, in an RGB color space, RGB tone data which is RGB image data; and a comparison section which compares (i) a tonal value of a white point which is neither an origin nor maximum tonal values of R, G, and B in the RGB color space, and where tonal values of R, G, and B are identical to one another, with (ii) respective tonal values of R, G, B of the RGB tone data. (A) In case where the tonal values of R, G, and B are determined to be larger than the white point, the signal correction means corrects the tonal values of R, G, and B to be close to the white point. (B) In case where the tonal values of R, G, and B of the RGB tone data is determined to be smaller than the white point, the signal correction section corrects they tonal values of R, G, and B of the RGB tone data to be away from the white point. As a result, undercolor processing is precisely executed while the color reproducibility in a highlight is maintained.
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Matsuoka Tomoe
Taka Kyosuke
Tanaka Tatsuya
Birch & Stewart Kolasch & Birch, LLP
Burleson Michael
Haskins Twyler L.
Sharp Kabushiki Kaisha
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