Watermarking digital image and video data. A state-of-the-art overview
TLDR
The authors begin by discussing the need for watermarking and the requirements and go on to discuss digitalWatermarking techniques based on correlation and techniques that are notbased on correlation.Abstract:
The authors begin by discussing the need for watermarking and the requirements. They go on to discuss digital watermarking techniques based on correlation and techniques that are not based on correlation.read more
Citations
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Journal ArticleDOI
Data Embedding in JPEG Bitstream by Code Mapping
TL;DR: An algorithm to embed data directly in the bitstream of JPEG imagery by remapping run/size values of marked VLCs so that standard viewers do not lose synchronization and displays the image with minimum loss of quality.
Journal ArticleDOI
A steganographic scheme by fully exploiting modification directions
TL;DR: The experimental results show that the proposed method outperforms three recently published works, namely Mielikainen's, Zhang and Wang's, and Yang et al.'s methods.
Journal ArticleDOI
Oblivious Spatio-Temporal Watermarking of Digital Video by Exploiting the Human Visual System
Alper Koz,A. Aydin Alatan +1 more
TL;DR: The proposed method utilizes the temporal contrast thresholds of HVS to determine the maximum strength of watermark, which still gives imperceptible distortion after watermark insertion but gives much better robustness against common video distortions, such as additive Gaussian noise, video coding, frame rate conversions, and temporal shifts.
Journal ArticleDOI
A study of multiplicative watermark detection in the contourlet domain using alpha-stable distributions.
TL;DR: A novel multiplicative watermarking scheme in the contourlet domain using the univariate and bivariate alpha-stable distributions is proposed and the robustness of the proposed bivariate Cauchy detector against various kinds of attacks is studied and shown to be superior to that of the generalized Gaussian detector.
Proceedings ArticleDOI
Spatially-Varying Blur Detection Based on Multiscale Fused and Sorted Transform Coefficients of Gradient Magnitudes
TL;DR: In this paper, a high-frequency multiscale fusion and sort transform (HiFST) of gradient magnitudes was proposed to detect spatially-varying blur.
References
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Journal ArticleDOI
Secure spread spectrum watermarking for multimedia
TL;DR: It is argued that insertion of a watermark under this regime makes the watermark robust to signal processing operations and common geometric transformations provided that the original image is available and that it can be successfully registered against the transformed watermarked image.
Journal ArticleDOI
Techniques for data hiding
TL;DR: This work explores both traditional and novel techniques for addressing the data-hiding process and evaluates these techniques in light of three applications: copyright protection, tamper-proofing, and augmentation data embedding.
Proceedings ArticleDOI
A digital watermark
TL;DR: The paper discusses the feasibility of coding an "undetectable" digital water mark on a standard 512/spl times/512 intensity image with an 8 bit gray scale, capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation.
Journal ArticleDOI
Image coding based on a fractal theory of iterated contractive image transformations
TL;DR: The author proposes an independent and novel approach to image coding, based on a fractal theory of iterated transformations, that relies on the assumption that image redundancy can be efficiently exploited through self-transformability on a block-wise basis and approximates an original image by a Fractal image.
Proceedings ArticleDOI
Techniques for data hiding
TL;DR: This work explores both traditional and novel techniques for addressing the data hiding process and evaluates these techniques in light of three applications: copyright protecting, tamper-proofing, and augmentation data embedding.