基于图像合并和平稳小波变换的新型水印嵌入算法  

A Novel Watermarking Scheme Based on Image Merging and DWT

作　　者：吴捷[1] 

机构地区：[1]泰州职业技术学院信息技术学院,泰州225300

出　　处：《计算机与数字工程》2016年第11期2240-2243,共4页Computer & Digital Engineering

基　　金：泰州职业技术学院博硕基金项目(编号:TZYBS-15-4)资助

摘　　要：提出一种基于图像合并和平稳小波变换的新型水印嵌入算法。不同于常见的数字水印嵌入算法,该方案首先将原始图像A分离成相互独立的两幅图像B和C,选择其中的一幅图像B进行水平合并,然后对融合后的图像进行平稳小波变换,选择低频子带进行水印嵌入,再通过平稳小波逆变换及水平分裂操作和图像C合成得到最终的含水印图像。实验结果表明,论文提出的水印算法不但具有较好的保真度,对于各种噪声攻击也具有较强的鲁棒性。A new digital watermarking algorithm combined with image merging and stationary wavelet transform（SWT）is proposed.Unlike the common watermarking techniques,this scheme decomposes the original image A into BC firstly,then selects one of the images B to carry on the horizontal merging and watermark is embedded in low frequency band of fusion image by using stationary wavelet transform.The final watermarked image is obtained by inverse stationary wavelet transform and horizontal split operation and synthesis with image C.Experiments show the watermarking algorithm is proposed in this paper not only has good fidelity,but also has good robustness to various noise attacks.

关 键 词：图像合并 平稳小波变换 水平分裂 鲁棒 

分 类 号：TN911.73[电子电信—通信与信息系统] TP391.4[电子电信—信息与通信工程]