A Spread Spectrum Zero Video Watermarking Scheme based on Dual Transform Domains and Log-Polar Transformation
نویسندگان
چکیده
منابع مشابه
A Spread Spectrum Zero Video Watermarking Scheme based on Dual Transform Domains and Log-Polar Transformation
This paper proposes a zero-video watermark scheme based on 2D-DWT and pseudo 3D-DCT, otherwise Singular Value Decomposition and log-polar transform are applied. The method makes no changes to original images while embedding the owner information of images so as to achieve high transparency. The log-polar transform ensures that the method is robust to rotation operations. In order to achieve the...
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This paper presents a robust spatial spreadspectrum (SS) video watermarking scheme with adaptive detection for H.264/AVC and SVC. We introduce a fast image size change method in DCT domain to obtain a lowpass and downsized version of the video frame for embedding, which protects the watermarking signal from being damaged by downsampling during SVC encoding. And then we embed watermark bits by S...
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Spread Transform (ST) is a quantization watermarking algorithm in which vectors of the wavelet coefficients of a host work are quantized, using one of two dithered quantizers, to embed hidden information bits; Loo [1] had some success in applying such a scheme to still images. We extend ST to the video watermarking problem. Visibility considerations require that each spreading vector refer to c...
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ژورنال
عنوان ژورنال: International Journal of Multimedia and Ubiquitous Engineering
سال: 2015
ISSN: 1975-0080
DOI: 10.14257/ijmue.2015.10.4.35