摘要
提出了基于云模型的数字图像水印技术。利用云模型的模糊性和随机性,给定参数使用正向云发生器产生的云滴作为水印信息,将云水印嵌入到数字图像中。在提取水印时,除了可以将还原出的云模型三个参数与原始参数进行比较外,还可以直接对云图进行对比判断。即使部分云滴改变,对云模型影响也不大,基于云模型的水印具有较好的鲁棒性。
A digital image watermarking technology based on cloud model is presented.Make use of the fuzziness and randomness of cloud model,the watermarking is generated according to the given parameters using forward cloud generator,and embedded in the digital image.When extracting the watermarking,the restored three parameters of cloud model can be compared with original parameters,and the cloud image also can be identified directly.Even if parts of cloud drops change,the influence to cloud model is little,and the watermarking based on cloud model has better robustness.
出处
《电脑知识与技术（过刊）》
2009年第7X期5490-5491,共2页
Computer Knowledge and Technology
关键词
云模型
数字水印
图像水印
版权保护
知识产权
cloud model
digital watermarking
image watermarking
copyright protection
intellectual copyright
