| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress deterioration when watermarks are embedded in a digital content. <P>SOLUTION: Digital objects such as moving images, still images, sounds and texts constituting the digital content are extracted from the digital content. As to the moving images, subject images 31-3n of many frames constituting the moving images are extracted. The redundancy of sound data 22, pieces of still image data 23 and 24, text data 25 and the subject images 31-3n extracted as the digital objects is calculated. The electronic watermarks are embedded in a digital object of which the calculated redundancy is high. The digital content is reconstructed from the digital objects 23 in which the electronic watermarks are embedded and the digital objects 22, 24, 25 and 31-3n in which the electronic watermarks are not embedded. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
