A Blind Watermarking Scheme Using Singular Vector Based On DWT/RDWT/SVD
نویسندگان
چکیده
منابع مشابه
Watermarking Scheme Based on Multiple Chaotic Maps
a watermarking scheme for Grayscale image isproposed based on a family of the chaotic maps and discretecosine transform. Jacobian Elliptic mapis employed to encrypt ofwatermarked logo. Piecewise nonlinear chaotic map is also usedto determine the location of DCT coefficients for the watermarkembedding. The purpose of this algorithm is to improve theshortcoming of watermarking such as small key s...
متن کاملA Robust Digital Image Watermarking Scheme Based on DWT
In this paper a wavelet-based logo watermarking scheme is presented. The logo watermark is embedded into all sub-blocks of the LLn sub-band of the transformed host image, using quantization technique. Extracted logos from all sub-blocks are merged to make the extracted watermark from distorted watermarked image. Knowing the quantization step-size, dimensions of logo and the level of wavelet tra...
متن کاملA Robust Blind Audio Watermarking Scheme Based on Singular Value Decomposition and Neural Networks
متن کامل
A Robust Digital Image Watermarking Scheme Based on DWT
In this paper a wavelet-based logo watermarking scheme is presented. The logo watermark is embedded into all sub-blocks of the LLn sub-band of the transformed host image, using quantization technique. Extracted logos from all sub-blocks are merged to make the extracted watermark from distorted watermarked image. Knowing the quantization step-size, dimensions of logo and the level of wavelet tra...
متن کاملA Robust Blind Image Watermarking Scheme Based on Classified Vector Quantization
Since 2000, many digital watermarking schemes for vector quantization (VQ)-compressed images have been proposed. Their main idea is to carry watermark information by VQ codeword indices. The advantage of this kind of watermarking schemes is its robustness to VQ compression with the same codebook. This Letter presents a more effective image watermarking method based on classified VQ. First, the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Broadcast Engineering
سال: 2016
ISSN: 1226-7953
DOI: 10.5909/jbe.2016.21.2.149