摘要
根据JPEG2000码流分层结构及其渐进传输性能,通过对指纹图像生成特征点数据按重要性在空间域位平面排序,结合小波系数的冗余度不同,把指纹信息自适应地从低到高嵌入到各频率子带中,实现了一种应用JPEG2000进行指纹图像隐藏的通信方法。结果表明,在不同压缩因子条件下,该方法提高了信息的隐藏效率并具有较高的不可见性。
With JPEG 2000 coding stream layered structure and progressive transmission characteristics, the paper presents a method of research on the fingerprint information hiding. By means of the ranked bitstrearn by importance to the image quality at space bit planes, the method may adaptively embedded hidden fingerprint information into wavelet coefficient from low frequency to high frequency band based the redundancy of each wavelet coefficient. Experimentation results shows, that the algorithm achieves high hiding efficiency and good invisibility in various conditional compression.
出处
《电路与系统学报》
CSCD
北大核心
2010年第2期27-32,共6页
Journal of Circuits and Systems
