文章基本信息

标题：A New Color Image Watermarking Algorithm using 3-level Discrete Wavelet Transform
本地全文：下载
作者：Azadeh Karimian ; Javad Vahidi
期刊名称：International Journal of Mechatronics, Electrical and Computer Technology
印刷版ISSN：2305-0543
出版年度：2017
卷号：7
期号：26
页码：3633-3643
出版社：Austrian E-Journals of Universal Scientific Organization
摘要：In this paper, a new color image watermarking based on discrete wavelet transform algorithm is presented, so that this scheme can raise the perceptual quality of watermarked image. The scheme is used the discrete wavelet transform (DWT) and the biorthogonal filter banks to decompose the LH sub-bands of main image up to three levels. The proposed watermarking algorithm is invisible and Non-blind. These algorithms has been tested with different images in the size of 256 × 256, 512 × 512and 1024 × 1024. To measure the robustness and perceptual quality, the proposed watermarkingscheme have been checked with method decomposing different sub-bands and the previous method.Experimental results demonstrate that this method has a higher perceptual quality than previousmethods. Also the proposed watermarking scheme is robustness than previous methods. Thewatermarked image is under different attacks such as the noisy, compress JPEG, rotate, crop and Medianfilter. The proposed algorithm is robust against different attacks.
关键词：watermarking; discrete wavelet transform; biorthogonal filter banks; robustness.