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A compact CCD color camera system with digital AWB control

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5 Author(s)
Imaide, T. ; Hitachi Ltd., Yokohama, Japan ; Takagi, Y. ; Nishizawa, A. ; Yamamoto, M.
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A novel signal-processing LSI was successfully developed for a compact CCD (charge coupled device) camera, where incident YRGB signals were converted into desired Y, C-Y signals, filtered, compressed, and automatically white-balanced. In order to realize accurate inner AWB (automatic white-balance) control, some ideas concerning white detection, white reproduction, and control speed were studied and developed with digital circuits. Specifically, digital circuits made a hold function, more accurate white detection, and a variable speed control possible

Published in:

Consumer Electronics, IEEE Transactions on  (Volume:36 ,  Issue: 4 )

Date of Publication:

Nov 1990

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