摘要
提出了一种基于时域变换的、隐藏效果良好的、具有鲁棒性的数字水印算法。由此产生的已嵌入水印的目标图无噪声现象 ,有良好的视觉质量和理想的 PSNR。加入水印的目标图经过各种处理 (特别是 JPEG压缩、划痕和剪切 )后所提取的水印依然是可识别的。
In this paper, we propose a robust quadtree-based watermarking algorithm with good image hiding effect. After watermarking, the image has good vision quality and its PSNR is ideal. Being retrieved from the image with JPEG compression, scratching or cutting, the watermark is still recognizable. As spatial processing has lower time complexity, the algorithm can be used to complex images.
出处
《电子工程师》
2003年第2期56-58,共3页
Electronic Engineer
