2022年 03期

基于混合优化算法的图像盲水印技术

Image Blind Watermark Based on Hybrid Optimization Algorithm


摘要(Abstract):

为了平衡水印系统约束与净负荷容量,提出一种结合量子粒子群优化与细菌觅食优化的混合优化算法,将提出的混合优化算法应用于图像盲水印;通过离散小波变换对测试图像的像素进行变换,选择测试图像的水平低频垂直高频和水平高频垂直低频子带,基于边缘熵和视觉熵的视觉特性,在子带中选择合适区块以提高水印图像质量;对选定的区块系数执行Schur变换,并隐藏感兴趣区域和患者电子记录水印;利用提出的混合优化算法选择最优阈值,将多个水印隐藏到测试图像中。结果表明,基于混合优化算法的图像盲水印技术性能优秀,可以抵御常见攻击,同时具有较好的鲁棒性和隐蔽性。

关键词(KeyWords): 混合优化算法;盲水印;感兴趣区域;鲁棒性;隐蔽性

基金项目(Foundation): 国家自然科学基金项目(61601189);; 广东省普通高校科研项目(2019KTSCX243,2020KTSCX210)

作者(Author): 张国梅,邹华兴,吴迪

DOI: 10.13349/j.cnki.jdxbn.20220104.001

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