【摘要】 针对因特网上数字图像的版权保护、认证和完整性等问题,基于DCT变换和m序列,提出了一种二值水印嵌入算法,实现了二值图像的嵌入和提取.实验表明,该算法当JPEG压缩比达到12时还能很好的恢复出水印,而且对剪切、噪声、滤波等图像处理操作也具有很好的鲁棒性.更多还原

【Abstract】 Aiming at these problems of digital images on the internet, including copyright protection, authentication and integrity, etc. the paper proposes a binary watermark embedding algorithm based on DCT and m- sequence, which achieves the embedding and extracting of a binary image. Experiment results show that the algorithm is robust against image processing operations such as cropping, image filtering, noises and JPEG lossy compression.更多还原