Text image authenticating algorithm based on MD5-hash function and Henon map

Jinqiao Wei; Ying Wang; Xiaoxue Ma

doi:10.1117/12.2281572

21 July 2017 Text image authenticating algorithm based on MD5-hash function and Henon map

Jinqiao Wei, Ying Wang, Xiaoxue Ma

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

Citation Download Citation

Jinqiao Wei, Ying Wang, and 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); https://doi.org/10.1117/12.2281572

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