一种基于对象关系的数字图像隐藏方法

提出了基于对象关系进行图像信息隐藏的方法。该方法利用公开图像与秘图间的对象关系,对公开图像和秘图进行对象区域划分,通过相似匹配图块的融合,可以更好地将秘图隐藏到公开图像之中。同时,对象关系信息可以作为密钥,极大地提高了隐藏信息的安全性和健壮性。实验结果表明,方法对带噪声或不规则破损图像的隐藏和恢复均具有较好的鲁棒性。

A Digital Image Hiding Technology Based on the Relations of Objects

The digital image hiding based on the relations of objects is proposed.A public image and a secrect one can be divided into several areas for the objects’relations between them.In the same areas,it can be easy to find the similar blocks in both images,and with the blending of matching image blocks,a secret image can be hidden in one public image effectively.The relations of objects also can act as the private keys,if some attackers get the blending image and the public one,he still can not recover the secret information due to the lack of the relations information,it could much more enhance the security and robustness of the hidden image.The schemes also can be used in digital watermarking and other digital application areas.The examples show that the schemes are robust in some extent for the hiding and restoring of abnormal damage and adding noise to images.