A Robust Blind Image Watermarking Method Using Local Maximum Amplitude Wavelet Coefficient Quantization
نویسندگان
چکیده
منابع مشابه
A Robust Blind Image Watermarking Method Using Local Maximum Amplitude Wavelet Coefficient Quantization
In this paper, an innovative blind watermarking algorithm has been proposed for imagery applications. This algorithm has used the coefficients of the discrete wavelet transform of the host image in the form of super trees to embed the predefined binary watermark in the host image. In this scheme, a pseudo random sequence is generated to determine the exact wavelet super trees used for embedding...
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To improve transparency, as an important parameter in watermarking, and maintain robustness, a new quantization coefficient of the third and fourth sub-bands of Discrete Wavelet Transform (DWT) is being proposed. In this method, all coefficients of four-level Haar DWT sub-bands of a host image (HL4, LH4, HL3 and LH3) are divided into different non-overlapping blocks. Then, each block is divided...
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ژورنال
عنوان ژورنال: Advances in Electrical and Computer Engineering
سال: 2010
ISSN: 1582-7445,1844-7600
DOI: 10.4316/aece.2010.03016