Text document digital watermark embedding and extracting method
A text document, digital watermarking technology, applied in the direction of digital data protection, program/content distribution protection, etc., can solve the problems of not being able to play an anti-crime role, the confidentiality is not high enough, and the defense line is easy to be broken, so as to achieve a good anti-crime function and security. The effect of improving sexuality and high crime prevention
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[0020] The specific steps of the present invention will be described below according to the accompanying drawings.
[0021] Concrete steps of the present invention are as follows:
[0022] ⑴Make watermark:
[0023] Make the original information into a value image with general drawing tool software (such as photoshop, drawing board in windows accessories, etc.), such as figure 1 As shown (the binary image can be binary image, bitmap image or GRB, etc.), and then use matlab, C, C++ language programming software to read the binary image, and get a one-to-one correspondence with the binary image "01" matrix, such as figure 2 As shown, the "01" matrix is used as watermark information.
[0024] (2) Generate watermark key: write the two binary code characters "0" and "1" into the font library of the TrueType character creation program respectively, and generate a key; the specific operation of this step can be found in Chinese patent ZL201110396024.X first step.
[0025] ⑶Wat...
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