| 摘要 |
An image data encoding system is disclosed, that comprises an electronic watermark embedding means (404) for embedding electronic watermark data selected from a plurality of types (408(0),...,408(n)) of electronic watermark data to the digital image data (401), wherein at least one of the plurality of types (408(0),...,408(n)) of electronic watermark data is predetermined electronic watermark data that does not affect the digital image data (401) even if the electronic watermark data is embedded in the digital image data (401). <IMAGE> |
