Research On Information Hiding Encoding And Decoding Technology Of Blind Synchronous Printing Quantum Dot

Digital watermarking technology is a widely used copyright protection method,but it is mostly based on the processing of transformation domain.In terms of technology implementation,it is much more complex to the airspace method.However,the encryption of digital watermark based on airspace alone cannot resist multiple attacks and it is difficult to realize the copyright protection of printed materials.A kind of digital watermarking technology which is easy to implement and can resist external attacks is also applied.Through analyzing the form of watermarking,the blind watermarking based on half-tone technology is studied.It realizes a kind of printing quantum dot information hiding technology that "the whole encrypted image information implantation,the partial image can extract the complete anti-false information".Based on the modern communication technology,this paper proposes an information hiding and recognition method for the reliable encoding and decoding of printed quantum dots,which is mainly used to solve the problem of authentication and information increment of anti-fake printed materials.This technology applies the multiple error detection and error correction coding method to generate the printed quantum dot mask image,which solves the problem of error code of the dot pattern data in the process of printing output and information reading.At the same time,in order to meet the scale matching requirements of the print quantum dot pattern mask modulation carrier image,multiple splicing of the original printed quantum dot pattern is required.In the process of splicing,the interleaved coding of each primitive lattice information was carried out to solve the information security vulnerability caused by the relative rules of the pattern arrangement of printed quantum dot lattice generated after splicing,which achieved better information security and hiding effect.This method solves the defects of existing anti-counterfeiting prints in anti-duplication and anti-breakage,and can be widely used in anti-counterfeiting of cigarette,wine,securities and certificates.