摘要
本文利用人眼视觉掩蔽特性 ,通过组合静态图像和文字水印对应方向上的小波细节子图数据 ,提出了一种基于小波多分辩率数据组合的在静态图像上嵌入文字水印的方案 .借助于原始图像 ,能方便、可靠地检测出嵌入的文字水印 .同时 ,对水印图像进行退化处理模拟实验表明 。
By combining the corresponding detail subimage data of the still image and text watermark when they are decomposed into subimages of different resolution level with wavelet transform,the paper proposed a scheme for still image text watermark in which the watermark embedding process employs the human visual masking model.With resorting to the original image,it is easy and reliable to extract the text watermark.Moreover,the experimental results show that the embedding text watermark is robust enough to image degradation processes.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2000年第6期142-144,共3页
Acta Electronica Sinica
