LBP and DWT based fragile watermarking for image authentication
LBP and DWT based fragile watermarking for image authentication
复制标题
基于LBP和DWT的图像认证脆弱水印
DOI：
10.3745/jips.03.0096
复制
发表时间：
2018
影响因子：
1.6
通讯作者：
Xiao Zhou
中科院分区：
文献类型：
--
作者：
Chengyou Wang;Heng Zhang;Xiao Zhou
离散小波变换（DWT）具有良好的多分辨率分解特性，其低频分量包含了图像的基本信息。在此基础上，提出了一种基于局部二值模式（LBP）和小波变换的图像脆弱水印算法。该方法采用低频小波系数的LBP模式作为特征水印，并将其插入宿主图像每个块中最大像素值的最低有效位（LSB）中。为了保证算法的安全性，采用Logistic映射对水印进行加密。此外，最大像素值的位置被预先存储，这将用于在接收侧提取水印。由于使用了离散小波变换，该方案生成的水印图像具有较高的视觉质量。实验结果表明，该算法不仅具有较低的水印负载，而且对各种攻击具有较好的篡改识别和定位性能。
The discrete wavelet transform (DWT) has good multi-resolution decomposition characteristic and its low frequency component contains the basic information of an image. Based on this, a fragile watermarking using the local binary pattern (LBP) and DWT is proposed for image authentication. In this method, the LBP pattern of low frequency wavelet coefficients is adopted as a feature watermark, and it is inserted into the least significant bit (LSB) of the maximum pixel value in each block of host image. To guarantee the safety of the proposed algorithm, the logistic map is applied to encrypt the watermark. In addition, the locations of the maximum pixel values are stored in advance, which will be used to extract watermark on the receiving side. Due to the use of DWT, the watermarked image generated by the proposed scheme has high visual quality. Compared with other state-of-the-art watermarking methods, experimental results manifest that the proposed algorithm not only has lower watermark payloads, but also achieves good performance in tamper identification and localization for various attacks.