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一种检测图像Copy-Move篡改鲁棒算法*

, PP. 630-634

Keywords: 复制粘贴,篡改,几何矩,鲁棒检测

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Abstract:

针对现有的复制粘贴(Copy-Move)检测算法鲁棒性较差,时间复杂度高,提出一种有效快速的检测与定位篡改区域算法.利用小波变换获取图像低频区域,引入几何矩提取分块鲁棒特征,通过特征向量排序缩小匹配空间,最后通过经验阈值和数学形态学定位篡改区域.实验结果表明该算法不仅能有效抵抗如高斯白噪声、JPEG压缩等常规图像后处理操作,而且减少块总数,算法的时间复杂度大大降低.

References

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