21 July 2017 Text image authenticating algorithm based on MD5-hash function and Henon map
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Proceedings Volume 10420, Ninth International Conference on Digital Image Processing (ICDIP 2017); 104202W (2017) https://doi.org/10.1117/12.2281572
Event: Ninth International Conference on Digital Image Processing (ICDIP 2017), 2017, Hong Kong, China
Abstract
In order to cater to the evidentiary requirements of the text image, this paper proposes a fragile watermarking algorithm based on Hash function and Henon map. The algorithm is to divide a text image into parts, get flippable pixels and nonflippable pixels of every lump according to PSD, generate watermark of non-flippable pixels with MD5-Hash, encrypt watermark with Henon map and select embedded blocks. The simulation results show that the algorithm with a good ability in tampering localization can be used to authenticate and forensics the authenticity and integrity of text images
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Jinqiao Wei, Ying Wang, Xiaoxue Ma, "Text image authenticating algorithm based on MD5-hash function and Henon map", Proc. SPIE 10420, Ninth International Conference on Digital Image Processing (ICDIP 2017), 104202W (21 July 2017); doi: 10.1117/12.2281572; https://doi.org/10.1117/12.2281572
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