Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2011-08-09
2011-08-09
Ye, Lin (Department: 2622)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S221100, C348S365000, C348S254000, C348S229100, C348S603000, C382S274000, C382S264000
Reexamination Certificate
active
07995120
ABSTRACT:
An apparatus and a method of smoothing the brightness of an image photographed in an image sensor without amplifying a noise component of a surrounding part of the image are disclosed. The image brightness correction apparatus correcting the brightness of an image by using a correction curve can include an image input unit, receiving an image; a correction gradient selection unit, selecting a gradient of the correction curve corresponding to an object pixel, having the brightness desired to be corrected, of pixels of the image; a correction performance unit, converting original brightness of the object pixel into correction brightness according to the correction curve having the selected gradient; and an image output unit, outputting the image allowing the object pixel to have the correction brightness by the correction performance unit; whereas the correction curve increases the contrast of the corresponding correction brightness if the original brightness is the same as or smaller than a predetermined brightness, and the correction curve decreases the contrast of the corresponding correction brightness if the original brightness is larger than a predetermined brightness. With the present invention, a dynamic range of an image is smooth and the contrast of the image is acquired.
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patent: 2005/0185071 (2005-08-01), Takahashi et al.
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patent: 10-2006-0016648 (2006-02-01), None
Birch & Stewart Kolasch & Birch, LLP
Camargo Marly
Mtekvision Co., Ltd.
Ye Lin
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