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Lossless Information Hiding in Images by Shi-Ze Guo, Zhe-Ming Lu

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1.2. Overview of Information Hiding

Digital equipment and computer technologies provide a great convenience for production and access to multimedia information such as audio, images, video, animation, text, and 3D models. Meanwhile, with the growing popularity of the Internet, multimedia information exchange has reached unprecedented breadth and depth. People can now publish their works through the Internet, communicate important information, or perform network trade. However, as a result, some very serious problems also emerge: it becomes easier to infringe the rights of digital works and violate the privacy of people, it becomes more convenient to tamper and forge the digital works, and the malicious attacks become more rampant. Therefore, the ...

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