4 February 2009 Improvements on image authentication and recovery using distributed source coding
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Abstract
This paper investigates the performance and proposes modifications to earlier methods for image authentication using distributed source coding. This approach works well on images that have undergone affine geometric transformations such as rotation and resizing and intensity transformations such as contrast and brightness adjustment. The results show that the improvements proposed here can be used to make the original scheme for image authentication robust to affine geometric and intensity transformations. The modifications are of much lesser computational complexity when compared with other schemes for estimation of channel parameters.
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Nitin Khanna, Nitin Khanna, Antoni Roca, Antoni Roca, George T. C. Chiu, George T. C. Chiu, Jan P. Allebach, Jan P. Allebach, Edward J. Delp, Edward J. Delp, } "Improvements on image authentication and recovery using distributed source coding", Proc. SPIE 7254, Media Forensics and Security, 725415 (4 February 2009); doi: 10.1117/12.807352; https://doi.org/10.1117/12.807352
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