A system and method for improving digital flash photographs. The present invention is a technique that significantly improves low-light imaging by giving the end-user all the advantages of flash photography without producing the jarring look. The invention uses an image pair--one taken with flash the other without--to remove noise from the ambient image, sharpen the ambient image using detail from the flash image, correct for color, and remove red-eye.

 
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< Optical sensor device and a method of controlling its exposure time

> Imaging device

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