Television – Monitoring – testing – or measuring – Testing of camera
Reexamination Certificate
2007-07-24
2009-11-03
Tran, Trang U (Department: 2622)
Television
Monitoring, testing, or measuring
Testing of camera
C348S187000, C348S175000, C348S363000
Reexamination Certificate
active
07612801
ABSTRACT:
Digital cameras are calibrated so that detailed highlights and shadows in scenes being photographed are reproduced in digital images of those scenes by calibrating holographic data obtained from target images at those scenes. In one embodiment the target image is obtained from an actual target having black and white, and optionally gray, target areas; and in another embodiment, the target image is obtained from the scene being photographed. In both embodiments, histographic data is manipulated so that shadow and highlight data spikes are automatically placed in boundary areas by automatically adjusting lens aperture and/or shutter speed prior to taking the desired photograph of the scene. The resulting photograph is adjusted for highlight and shadow details.
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Tran Trang U
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