# 一种新的鲁棒性水印算法A New Robust Watermarking Algorithm

DOI: 10.12677/CSA.2015.54015, PDF, HTML, XML, 下载: 1,972  浏览: 4,482

Abstract: This paper presents a new robust digital watermarking algorithm based on Radon transform, dis-crete wavelet transform (DWT) and block singular value decomposition (SVD). This algorithm uses the properties of the Radon transform, wavelet transform and singular value, and needs to be done in five steps: firstly, making the Radon transform of the original image; secondly, doing discrete wavelet transform (DWT) of the resulting image; thirdly, taking the high-frequency sub-band divided into blocks; fourthly, doing singular value decomposition (SVD) for every block; finally, selecting each largest singular value to embed the watermark information by the quantization method. The algorithm is a blind watermarking algorithm, because we can detect and extract the watermark information without the original image. The simulation results show that the method has good robustness not only for the rotation, scaling, translation and other attacks, but also for ordinary adding noise, filtering, and JPEG compression attack.

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