| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique that minimizes deterioration in material and makes embedded data more robust against processing, which intentionally or unintentionally damage the embedded data. SOLUTION: The method of embedding data in material includes a step of embedding data to the original material and producing the material to which the data are embedded, a step of eliminating watermark from the material to which the data are embedded to create a reproduced material, a step of comparing the original material with the reproduced material and determining their difference and the position of the difference, and a step of correcting the position and the difference and of storing the correction. |
