关键词：Zernike矩；图像篡改；区域检测；旋转不变性；字典式排列 [gap=904]Key words：Zemike moment；image forgery；region detection；rotation invariance；lexicographic order
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This is one of the simple and effective image forgery techniques.
这是一种简单而有效的图像篡改技术。
参考来源 - 图像区域复制粘贴检测技术研究To the features of various operations, corresponding algorithm models have been adopted. Because image forgery often involves several operations, such as copy, paste, resample and fuzzy, the system uses various types of models for the forensic analysis.
由于一幅伪造图像往往涉及复制粘贴、重采样、模糊等几种操作,系统综合采用各类检测模型进行对比取证分析,从总体上极大地提高了分析准确率。
参考来源 - 基于色像差的数字图像盲取证系统设计·2,447,543篇论文数据，部分数据来源于NoteExpress
Base on this characteristic, this paper presents a passive image forgery detection algorithm which uses blind estimation of background noise.
本文利用这一特点，提出了一种基于背景噪声分析的图像真伪被动鉴别算法。
Region duplication forgery, in which a part of a digital image is copied and then pasted to another portion of the same image, is one of the simple and common image forgery techniques.
图像区域复制篡改就是将数字图像中一部分区域进行复制并粘贴到同一幅图像的另外一个区域，是一种简单而又常见的图像篡改技术。
But when the image analysis was repeated at a greater level of detail, the Wacker forgery was shown to be different.
然而通过对图像细节进一步地反复分析，沃克的伪作就露了馅。
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