| 摘要 |
PURPOSE:To adjust a color balance automatically, and to attain the automatic adjustment for a tone matching between cameras by sending a reference voltage from a master camera to each slave camera, and correcting the adjustment setting value of each camera based on the reference voltage. CONSTITUTION:The reference voltage from the master camera is inputted to the input terminal 4 of the slave camera, and is sent to a differential amplifier 9 through a multiplexer 5. Also a value equivalent to an external reference voltage (for example, 1V) is outputted from a microprocessor 16 through an I/O port 14, and is sent to the differential amplifier 9 through a multiplexer 6. A difference signal between the outputs 7 and 8 is sampled, and is read in the micro-processor 16 through an A/D converter 13. With the above operation, a correction value corresponding to the error of each camera is read in, then being stored at a RAM 17. Thereby, the setting value of each adjusting item is corrected.
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