采用圆谐-傅里叶矩的图像区域复制粘贴篡改检测

秦娟; 李峰; 向凌云; 殷苌茗

doi:10.11834/jig.20130805

图像处理和编码 | 浏览量 : 0 下载量: 228 CSCD: 0

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采用圆谐-傅里叶矩的图像区域复制粘贴篡改检测
Detection of image region copy-move forgery using radial harmonic Fourier moments
2013年18卷第8期页码：919-923
纸质出版：2013
DOI： 10.11834/jig.20130805
稿件说明：

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秦娟, 李峰, 向凌云, 殷苌茗. 采用圆谐-傅里叶矩的图像区域复制粘贴篡改检测[J]. 中国图象图形学报, 2013,18(8):919-923. DOI： 10.11834/jig.20130805.

Qin Juan, Li Feng, Xiang Lingyun, Yin Changming. Detection of image region copy-move forgery using radial harmonic Fourier moments[J]. Journal of Image and Graphics, 2013, 18(8): 919-923. DOI： 10.11834/jig.20130805.

摘要

现有检测方法大多对图像区域复制粘贴篡改的后处理操作鲁棒性不高。针对这种篡改技术

提出一种新的基于圆谐-傅里叶矩的区域篡改检测算法。首先将图像分为重叠的小块;然后提取每个图像块的圆谐-傅里叶矩作为特征向量并对其进行排序;最后根据阈值确定相似块

利用位移矢量阈值去除错误相似块以定位篡改区域。实验结果表明

该算法能有效抵抗噪声、高斯模糊、旋转等图像后处理操作

且与基于HU矩的方法相比有更好的检测结果。

Abstract

Most existing forgery detection algorithms have the weak robustness to post-processing operations of the copy-move forgery regions. For the detection of image regions forged by copy-move

we propose a detection algorithm based on radial harmonic Fourier moments in this paper. First

the detected image is divided into multiple overlapping blocks with the same size. Second

radial harmonic Fourier moments of each block are extracted as a feature vector and all extracted vectors are sorted. Last

the similar blocks are determined by a pre-established threshold

the error similar blocks are eli-minated by using a threshold of the displacement vector

and the tampered region is located. Experimental results show that the proposed algorithm deals well with various post-processing operations of image region copy-move forgery

including noise addition

blurring

rotation

translation and so on. In addition

our algorithm has a better detection rate than that of HU moment-based method.