Television – Monitoring – testing – or measuring – Testing of camera
Reexamination Certificate
2007-07-24
2007-07-24
Tran, Trang U. (Department: 2622)
Television
Monitoring, testing, or measuring
Testing of camera
C348S187000, C348S175000, C348S208120
Reexamination Certificate
active
10636738
ABSTRACT:
Calibration targets for use with digital cameras comprise black and white target areas to which digital cameras are exposed simultaneously to provide proper settings for highlight and shadow sensitivity prior to making a digital photograph. In addition a white or gray neutral target area, without color bias, is provided, to which the digital cameras are exposed to provide desired settings for color balance prior to making digital photographs. In one embodiment of the calibration target, the black and white target areas are on one side of a panel and the white or gray neutral target area is on the other side of the panel. In accordance with methods of calibrating digital cameras and to methods of photography, the image of the black and white target areas is adjusted by viewing a histogram display thereof and adjusting exposure settings until spikes in the histogram representing black and white detection are equally balanced between boundaries with no lateral offset.
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Tran Trang U.
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