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Robust lossless data hiding (LDH) methods have attracted more and more attentions for copyright protection of multimedia in lossy environment. One of the important requirements of the robust LDH methods is the reversibility, that is, the host images can be recovered without any distortion after the hidden messages are removed. The reversibility is often guaranteed by the embedding model, which affects...
This paper presents a robust video watermarking scheme. It mainly contains three characteristics: 1) the sinusoidal signals pattern is embedded as watermark in the selected sub-bands of 3D dual-tree complex wavelet transform (3D-CWT), which is employed to preserve the image quality and improve the robustness of watermark; 2) at the detection end, the detected peaks response are used to achieve attacks...
In this paper, we present a robust approach to digital watermarking embedding and retrieval for digital images. The affine-invariant point detector is used to extract feature regions of the given host image. Image normalization and dominant gradient orientation alignment are applied to these feature regions to achieve scaling and rotation invariance. Thereafter, watermarks are embedded in these feature...
In this paper, a robust image watermarking approach is presented based on image local invariant features. The affine invariant point detector is used to extract feature regions of the given host image. Image normalization and dominant gradient orientation alignment are performed to these feature regions. Thereafter, circular watermark pattern are embedded in these image normalized patches. After the...
In this paper, we present a robust approach of digital watermarking embedding and retrieval for digital images. This new approach works in special domain and it has two major steps: (1) to extract affine co-variant regions, and (2) to embed watermarks with a novel fuzzy inference mechanism. The advantage of this proposed approach is demonstrated by a large amount of experiments, which are mainly against...
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