基于不变矩的Copy-Move型篡改图像盲检测方法

Blind Detection of Copy-Move Forgery in Digital Images Based on Moment Invariants

拷贝粘贴(Copy-Move)是极为常见的图像篡改方式之一。为了快速有效地检测这种图像篡改,该文提出了一种基于不变矩的Copy-Move型篡改图像盲认证方法,实验结果表明,此方法不仅可以检测传统的Copy-Move型篡改,而且可以检测出经过旋转、镜像以及缩放的Copy-Move型篡改,同时,为降低算法的复杂度,还提出利用块迭代划分方法来有效减少搜索计算量。仿真实验结果表明,该方法是有效的。

The Copy-Move is a common method in digital image manipulation. In this paper, based on moment invariants, one blind detective method is investigated. The proposed method can successfully detect forged part even when the copied area is rotated, reversed and zoomed. The iterative block split is also proposed to deal with the problem of large computational complexity of the proposed algorithm. Simulation results show the efficiency of proposed algorithm.