Research On Technology Of Digital Watermarking Embedding For Text-printing

As a new information security technique, the technology of digital watermarking conceals the watermarking information in the multimedia carrier to protect digital medium's copyright, ownership or authentic and dependable.The thesis uses text watermark, computer printing and scanning technology, making the digital watermark information hidden in the printed texts. When we need to extract the digital watermark, we use scanning technology to scan printed text to format input, and then use text watermarking technology to extract the information, and achieve the goal of protection of the text. The thesis referred to in the text watermark embedding method has a good hidden effect. It can effectively resist geometric attacks, weaker graphics format conversion attack. It has good robustness.