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    • 31. 发明专利
    • ELECTRONIC CAMERA
    • JP2001086449A
    • 2001-03-30
    • JP25654899
    • 1999-09-10
    • NIKON GIJUTSU KOBO KKNIKON CORP
    • OMURA AKIRA
    • H04N5/225H04N1/387H04N5/91
    • PROBLEM TO BE SOLVED: To eliminate the loss of a good opportunity for a photograph and to reduce embedded electronic watermark program development expenses by recording electronic image data obtained by embedding an electronic watermark in an imaged subject image in a memory and recording image data with an embedded electronic watermark and image data without the embedded watermark in the memory about the same subject image. SOLUTION: An image pickup circuit 202 having an image pickup device, an A/D converter, etc., outputs the image signal of an image picked up subject. An image processing circuit 203 applies various processing to the image signal outputted from the circuit 202 and generates image data. A watermark embedding circuit 204 embeds electronic watermark data in the image data made to pass through the circuit 203. The image data outputted from the circuit 203 or 204 are subjected to JPEG compression, and also, a JPEG circuit 205 expands compressed image signal recorded in a memory 207. A recording circuit 206 records the image data in the memory 207.