DIGITAL WATERMARKING DEVICE, DIGITAL WATERMARK VERIFICATION DEVICE, DIGITAL WATERMARKING METHOD, AND DIGITAL WATERMARK VERIFICATION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a digital watermarking device capable of suppressing deterioration of an image by embedding a digital watermark in a novel method different from conventional ones, a digital watermark verification device, a digital watermarking method, and a digital watermark verification method. PSOLUTION: The digital watermarking device embeds a digital watermark in source data. The digital watermarking device includes an digital watermarking means for embedding a digital watermark by varying one of R values, B values and G values of pixels other than a certain pixel of the source data based upon an R value, a G value and a B value of the certain pixel. PCOPYRIGHT: (C)2009,JPO&INPIT