首页> 外文会议>CSISE 2011;Conference on computer science, intelligent system and environment >Image-Adaptive Watermarking Algorithm to Improve Watermarking Technology for Certain Water Marking Based on DWT and Chaos
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Image-Adaptive Watermarking Algorithm to Improve Watermarking Technology for Certain Water Marking Based on DWT and Chaos

机译:基于DWT和混沌的图像自适应水印算法对某些水印的改进

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In this paper, a digital image watermark algorithm to improve watermarking technology for certain watermarking materials based on discrete wavelet transform and chaos theory is proposed. During the watermarking embedding, discrete wavelet transform is done firstly and the chaotic sequence is produced for the watermark. Before the watermark is embedded, a correlation mask for every lowest coefficient is confirmed by the characteristic and tree structure relation of the wavelet coefficients. Then, the hided watermarking strength of every lowest coefficient is controlled by its corresponding mask. The experimental results show that the proposed algorithm is effective and robust to common image processing operations and some geometric operations such as JPEG compression, JPEG2000 compression, Filtering, Adding Gaussian noise and so on. The effect of watermarking image is very well.
机译:提出了一种基于离散小波变换和混沌理论的数字图像水印算法,以改进某些水印材料的水印技术。在水印嵌入过程中,首先进行离散小波变换,并产生水印的混沌序列。在嵌入水印之前,通过小波系数的特征和树结构关系来确定每个最低系数的相关掩码。然后,每个最低系数的隐藏水印强度由其相应的掩码控制。实验结果表明,该算法对常见的图像处理操作以及一些诸如JPEG压缩,JPEG2000压缩,滤波,加高斯噪声等几何运算都是有效且鲁棒的。水印图像的效果非常好。

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