| 摘要 |
PROBLEM TO BE SOLVED: To provide an apparatus for processing an electronic watermark in which a resistance to addition of a noise or cutting out is improved. SOLUTION: The apparatus for processing the electronic watermark comprises a means for dividing data into blocks, a means for converting block data into one-dimensional data, a means for embedding watermark data in the one-dimensional data, a means for returning the one-dimensional data into the original block, and a means for combining the blocks to restore to the original image data. Further, the apparatus also comprises a means for searching the position of the block, and a means for detecting the watermark data from the one-dimensional data. According to the apparatus, if the cut-out data includes one or more blocks, the watermark data can be detected. A decision by majority of the watermark data detected from the plurality of the blocks can be adopted, the resistance to the noise is improved, and a detecting accuracy is improved. COPYRIGHT: (C)2003,JPO
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