Digital watermarking
New Iterative Geometric Methods for Robust Perceptual Image Hashing
DRM '01 Revised Papers from the ACM CCS-8 Workshop on Security and Privacy in Digital Rights Management
Clustered Blockwise PCA for Representing Visual Data
IEEE Transactions on Pattern Analysis and Machine Intelligence
Compact and robust image hashing
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part II
Structural digital signature for image authentication: an incidental distortion resistant scheme
IEEE Transactions on Multimedia
Fault resilient and compression tolerant digital signature for image authentication
IEEE Transactions on Consumer Electronics
Perceptual Image Hashing Via Feature Points: Performance Evaluation and Tradeoffs
IEEE Transactions on Image Processing
A robust image authentication method distinguishing JPEG compression from malicious manipulation
IEEE Transactions on Circuits and Systems for Video Technology
A novel PCA-based authentication watermarking scheme with superior localization and security
ICICS'09 Proceedings of the 7th international conference on Information, communications and signal processing
An enhanced drawing reproduction graphical password strategy
Journal of Computer Science and Technology - Special issue on Natural Language Processing
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In this paper, a secure and incidental distortion tolerant signature method for image authentication is proposed. The generation of authentication signature is based on Hotelling's T-square Statistic (HTS) via Principal Component Analysis (PCA) of block DCT coefficients. HTS values of all blocks construct a unique and stable "block-edge image", i.e., Structural and Statistical Signature (SSS). The characteristic of SSS is that it is short, and can tolerate content-preserving manipulations while keeping sensitive to content-changing attacks, and locate tampering easily. During signature matching, the Fisher criterion is used to obtain optimal threshold for automatically and universally distinguishing incidental manipulations from malicious attacks. Moreover, the security of SSS is achieved by encryption of the DCT coefficients with chaotic sequences before PCA. Experiments show that the novel method is effective for authentication.