Digital Watermarking: 4th International Workshop, IWDW 2005, Siena, Italy, September 15-17, 2005, Proceedings / Edition 1

Table of Contents

Session I: Steganography and Steganalysis.- A New Approach to Estimating Hidden Message Length in Shastic Modulation Steganography.- Information Transmission and Steganography.- On the Existence of Perfect Stegosystems.- Towards Multi-class Blind Steganalyzer for JPEG Images.- Session II: Fingerprinting.- An Efficient Fingerprinting Scheme with Symmetric and Commutative Encryption.- Collusion Secure Convolutional Spread Spectrum Fingerprinting.- Performance Study on Multimedia Fingerprinting Employing Traceability Codes.- Regular Simplex Fingerprints and Their Optimality Properties.- Session III: Watermarking I.- A Robust Multi-bit Image Watermarking Algorithm Based on HMM in Wavelet Domain.- Robust Detection of Transform Domain Additive Watermarks.- Multi-band Wavelet Based Digital Watermarking Using Principal Component Analysis.- Session IV: Attacks.- A New Inter-frame Collusion Attack and a Countermeasure.- Effectiveness of ST-DM Watermarking Against Intra-video Collusion.- Oracle Attacks and Covert Channels.- Security of DM Quantization Watermarking Schemes: A Practical Study for Digital Images.- Session V: Special Session on Watermarking Security.- A Survey of Watermarking Security.- Countermeasures for Collusion Attacks Exploiting Host Signal Redundancy.- Fingerprinting Schemes. Identifying the Guilty Sources Using Side Information.- Practical Data-Hiding: Additive Attacks Performance Analysis.- The Return of the Sensitivity Attack.- Session VI: Watermarking of Unconventional Media.- Look Up Table(LUT) Method for Halftone Image Watermarking.- New Public-Key Authentication Watermarking for JBIG2 Resistant to Parity Attacks.- Software Watermarking as a Proof of Identity: A Study of Zero Knowledge Proof Based Software Watermarking.- Watermarking of 3D Irregular Meshes Based on Wavelet Multiresolution Analysis.- Session VII: Channel Coding and Watermarking.- Digital Watermarking Robustness and Fragility Characteristics: New Modelling and Coding Influence.- New Geometric Analysis of Spread-Spectrum Data Hiding with Repetition Coding, with Implications for Side-Informed Schemes.- Trellis-Coded Rational Dither Modulation for Digital Watermarking.- Session VIII: Theory.- Closed-Form Formulas for Private Watermarking Capacities of Laplacian Sources with the Magnitude-Error Distortion Measure and Under Additive Attacks.- Improved QIM Strategies for Gaussian Watermarking.- On the Achievable Rate of Side Informed Embedding Techniques with Steganographic Constraints.- Performance Lower Bounds for Existing and New Uncoded Digital Watermarking Modulation Techniques.- Session IX: Watermarking II.- Evaluation of Feature Extraction Techniques for Robust Watermarking.- Perceptual Video Watermarking in the 3D-DWT Domain Using a Multiplicative Approach.- Robustness Enhancement of Content-Based Watermarks Using Entropy Masking Effect.- Session X: Applications.- Secure Mutual Distrust Transaction Tracking Using Cryptographic Elements.- ViWiD : Visible Watermarking Based Defense Against Phishing.

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