Method for Adding Watermark and Recognizing Watermark to Document in Printing Process
A watermark adding and printing process technology, applied in the direction of digital output to printing unit, data processing input/output process, program/content distribution protection, etc., can solve problems such as low efficiency of watermark information, and achieve unreadable and anti-interference ability. , strong anti-interference ability, the effect of protecting copyright
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[0053]In order to have a further understanding of the technical solutions and beneficial effects of the present invention, the technical solutions and beneficial effects of the present invention will be described in detail below based on specific embodiments.
[0054] The method for adding a watermark to a document during the printing process provided by the present invention comprises the following steps:
[0055] S1: The printing system receives the data transmitted by the office software;
[0056] S2: Adding watermark: the printing system adds the watermark to the data transmitted by the office software, combined with the binarized watermark information, and completes the printing;
[0057] S3: Watermark recognition: Combine the matrix obtained from the scanned paper watermark document and the matrix obtained from the data transmitted by the office software to integrate the intermediate transformation matrix, and restore the watermark information based on the intermediate t...
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