ELECTRONIC WATERMARK INSERTING METHOD, ELECTRONIC WATERMARK INSERTING APPARATUS, AND ELECTRONIC WATERMARK INSERTING PROGRAM, AND ELECTRONIC WATERMARK DETECTING METHOD, ELECTRONIC WATERMARK DETECTING APPARATUS, AND ELECTRONIC WATERMARK DETECTION PROGRAM

摘要

PPROBLEM TO BE SOLVED: To increase data information amount of an electronic watermark to be embedded in an image without making the electronic watermark conspicuous. PSOLUTION: An electronic watermark for identifying a right image and an electronic watermark denoting first data D1 are inserted to the right image, and an electronic watermark for identifying a left image and an electronic watermark denoting second data D2 are inserted to the left image. A photographed image is divided into a photographed right image and a photographed left image, the first data are detected from a photographed half image (photographed right image or photographed left image) to which the electronic watermark for identifying the right image is inserted, and the second data are detected from a photographed half image (photographed left image or photographed right image) to which the electronic watermark for identifying the left image is inserted. PCOPYRIGHT: (C)2006,JPO&NCIPI