摘要
根据Watson模型,结合仿射变换置乱技术和DCT量化系数奇偶特性,本文提出了一种在分块DCT中频交流系数中嵌入有含义二值水印图像,以实现盲检测的水印方案。实验结果表明,该算法对于JPEG有损压缩、图像剪切等处理有很强的鲁棒性。
Through using the technology for scrambling digital image based on affined transformation and even-uneven identity of DCT quantifying coefficients, this paper proposes a meaningful 2-bit watermarking image embedding algorithm on block discrete cosine transform（DCT） intermediate frequency AC coefficients according to Watson model. The cover image is not needed when extracting the watermarking data. The experiment results show that the algorithm has good robustness on image cut, JPEG.
出处
《微计算机信息》
北大核心
2006年第10Z期207-209,共3页
Control & Automation
基金
教育部科研基金重点项目(20030502)
河南省教育厅自然科学基金项目(20015200036)
关键词
数字水印
DCT域
感知模型
盲检测
digital watermarking, DCT-domain, perceptual model, blind testing
