| 摘要 |
PROBLEM TO BE SOLVED: To imbed an electronic watermark in time series processed data such as music data without losing the quality of data. SOLUTION: Two-dimensional image data are converted into linear data by a prescribed algorithm and the linear data are superimposed on the time series processed data. In this case, an electronic watermark is imbedded according to formula 1. When the resulting data are decoded to restore the image, the excellent image resolution capability of human bodies allows people to easily recognize signature information. |
