Robust image watermarking in the spatial domain
Signal Processing
Blind image data hiding based on self reference
Pattern Recognition Letters
Digital image watermarking using fuzzy logic and naturalness preserving transform
Digital image watermarking using fuzzy logic and naturalness preserving transform
Curvelet-Domain Image Watermarking Based on Edge-Embedding
KES '07 Knowledge-Based Intelligent Information and Engineering Systems and the XVII Italian Workshop on Neural Networks on Proceedings of the 11th International Conference
A quasi blind watermark extraction of watermarked natural preserve transform images
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Cocktail watermarking for digital image protection
IEEE Transactions on Multimedia
A watermarking technique based on one-way hash functions
IEEE Transactions on Consumer Electronics
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
IEEE Transactions on Image Processing
IEEE Transactions on Image Processing
Watermarking in the space/spatial-frequency domain using two-dimensional Radon-Wigner distribution
IEEE Transactions on Image Processing
A new, fast, and efficient image codec based on set partitioning in hierarchical trees
IEEE Transactions on Circuits and Systems for Video Technology
A robust image authentication method distinguishing JPEG compression from malicious manipulation
IEEE Transactions on Circuits and Systems for Video Technology
Novel blind multiple watermarking technique for images
IEEE Transactions on Circuits and Systems for Video Technology
A new watermarking method with obfuscated quasi-chirp transform
IWDW'11 Proceedings of the 10th international conference on Digital-Forensics and Watermarking
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This paper describes a new image watermarking technique based on the Natural Preserving Transform (NPT). The proposed watermarking scheme uses NPT to encode a gray scale watermarking logo image or text, into a host image at any location. NPT brings a unique feature which is uniformly distributing the logo across the host image in an imperceptible manner. The contribution of this paper lies is presenting two efficient nonblind and quasiblind watermark extraction techniques. In the quasiblind case, the extraction algorithm requires little information about the original image that is already conveyed by the watermarked image. Moreover, the proposed scheme does not introduce visual quality degradation into the host image while still being able to extract a logo with a relatively large amount of data. The performance and robustness of the proposed technique are tested by applying common image-processing operations such as cropping, noise degradation, and compression. A quantitative measure is proposed to objectify performance; under this measure, the proposed technique outperforms most of the recent techniques in most cases. We also implemented the proposed technique on a hardware platform, digital signal processor (DSK 6713). Results are illustrated to show the effectiveness of the proposed technique, in different noisy environments.