一种小波域自适应的盲视频水印算法

An Adaptive Blind Video Watermarking Algorithm In Wavelet Domain

针对视频版权的保护,本文提出了一种小波域自适应的盲视频水印算法。首先基于猫映射和Logistic映射的双混沌加密对图像水印进行处理以增强其安全性;然后对宿主视频进行场景分割,通过像素帧平均法提取关键帧并提取其亮度分量,将处理后的图像水印自适应地嵌入到经过小波变换后亮度分量的低频系数中。实验结果表明,本文的算法具有较好的不可见性,且针对锐化、高斯滤波、噪声、帧剪切等攻击具有良好的鲁棒性。

For the copyright protection of digital video, this paper proposed an algorithm that an adaptive blind video watermarking algorithm in wavelet domain. First, to enhance the watermarking image＇s safety, we process it based on cat mapping and logistic mapping of double-chaotic encryption; Then decomposed the host video into the frames, key frames are extracted by frame averaging method and extract the luminance component through a secrets, then the processed image watermark is adaptively embedded into the low frequency coefficients of the luminance component after the wavelet transform. The experimental results show that this algorithm has a good invisibility, and the attack on Sharpening, Gauss filtering, noise, frame shear has good robustness.