摘要
1引言
随着无线互连的不断发展,移动设备的使用越来越普遍,在移动设备上开发的服务项目更是日益丰富.以前移动设备只能提供文本服务,例如短信息;如今多媒体服务的不断涌现,极大地丰富了人们的生活,同时也把多媒体数据保护问题带到无线互连中.
In the mobile computing environment, we propose a novel watermarking algorithm based on integer wavelet through pixel-wise masking with simple human visual system (HVS).Then the correlation between the watermarking sequence and the marked DWT coefficients coded with difference refinement is discussed. Finally, watermarking detection algorithm is presented for scalable coding.
出处
《计算机科学》
CSCD
北大核心
2003年第12期99-102,共4页
Computer Science
