DIGITAL CAMERA, METHOD FOR CONTROLLING IT, AND DEVICE AND METHOD FOR REPRODUCING PICTURE DATA

摘要

PROBLEM TO BE SOLVED: To bury information on picture quality correction in picture data by electronic watermarking. SOLUTION: The picture data representing the photographed picture of an object are inputted to a watermark information burying circuit 51. The circuit 51 fetches information on picture quality correction from an optical unit 21, etc. In the circuit 51, the information on picture quality correction is buried in the picture data representing the photographed picture of the object by electronic watermarking. A watermark information reading-out circuit 52 reads out the information on picture quality correction from compressed watermarked picture data in which the information is buried. A picture quality correcting circuit 53 corrects the quality of the picture indicated by the watermarked picture data based on the read-out information on picture quality correction.