Image Watermarking Scheme With Unequal Protection Capability Based on Error Correcting Codes

We propose a novel image watermarking scheme capable of providing unequal protection levels to different regions. In the scheme, we firstly construct the unequal error protection (UEP) code by designing an unequal coding space using algebra means, then we divide the image into high protection region, low protection region and non-protection region, and use the UEP code to encode the bits generated by high and low protection regions simultaneously and form the watermark bits to embed in the non-protection region. On the receiver side, the extracted bits with UEP capability can restore the high protection region more correctly than the low protection region after the efficient decoding algorithm is applied.

[1]  Jean-Francois Delaigle,et al.  Invisibility and application functionalities in perceptual watermarking an overview , 2002, Proc. IEEE.

[2]  I. M. Boyarinov,et al.  Linear unequal error protection codes , 1981, IEEE Trans. Inf. Theory.

[3]  Alex ChiChung Kot,et al.  Binary Image Authentication With Tampering Localization by Embedding Cryptographic Signature and Block Identifier , 2006, IEEE Signal Processing Letters.

[4]  Shan Suthaharan,et al.  Fragile image watermarking using a gradient image for improved localization and security , 2004, Pattern Recognit. Lett..

[5]  Zhi-Qiang Liu,et al.  Region-Level Image Authentication Using Bayesian Structural Content Abstraction , 2008, IEEE Transactions on Image Processing.

[6]  Wil J. van Gils,et al.  Two topics on linear unequal error protection codes: Bounds on their length and cyclic code classes , 1983, IEEE Trans. Inf. Theory.

[7]  Markus G. Kuhn,et al.  Information hiding-a survey , 1999, Proc. IEEE.

[8]  Xinpeng Zhang,et al.  Fragile Watermarking With Error-Free Restoration Capability , 2008, IEEE Transactions on Multimedia.

[9]  Jiri Fridrich,et al.  Images with self-correcting capabilities , 1999, Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348).

[10]  Mao-Ching Chiu,et al.  On Unequal Error Protection of Convolutional Codes From an Algebraic Perspective , 2010, IEEE Transactions on Information Theory.

[11]  Lizhong Zheng,et al.  Unequal Error Protection: An Information-Theoretic Perspective , 2008, IEEE Transactions on Information Theory.

[12]  Xinpeng Zhang,et al.  Statistical Fragile Watermarking Capable of Locating Individual Tampered Pixels , 2007, IEEE Signal Processing Letters.

[13]  Nasir Memon,et al.  Secret and public key image watermarking schemes for image authentication and ownership verification , 2001, IEEE Trans. Image Process..