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提出了一种用于图像的小波域数据隐藏技术.由于小波变换具有良好的空间和频域方向选择性,它与人类的视觉特性十分吻合,而且小波变换域的多分辨率分解特性使得盲检成为可能.用这种算法嵌入的水印对JPEG压缩、滤波、剪切等图像攻击有很好的鲁棒性,因而能对图像的版权起到保护作用.
A wavelet domain data hiding technique is proposed for image.Because wavelet transform has good spatial and frequency selectivity, it is in good agreement with the human visual characteristics, and the multi-resolution decomposition of wavelet transform domain makes blind detection It is possible to use this algorithm to embed watermark JPEG compression, filtering, cutting and other image attacks have good robustness, which can play a protective role on the copyright of the image.