数字图像的拷贝翻转移动篡改检测

常见的图像篡改方法之一是将一幅图像中的部分内容复制处理后移动到其他位置产生新的伪造目标.针对将复制区域翻转后再润色粘贴的图像篡改提出了一种基于一组翻转不变的特征向量的检测方法.该检测方法不仅能检测一般的复制-移动-粘贴的行为,而且能检测出欺骗性较强的复制-翻转-移动-粘贴的行为,并能抵抗模糊和加入噪声等用来抹除篡改痕迹的常用润色方法和JPEG有损压缩.对几幅典型篡改图像的检测结果说明了算法的有效性.

Detection of Copy-flip-move Forgery in Digital Images

The image copy-move forgery is one of common types of image tampering.The occasions are studied in which a part of an image is copied and fliped and pasted in another part of the same image with the intent to create a false object.Some preprocessing such as flipping and size adjusting are often applied to the copied region before pasting.Some retouch tools are also used to conceal traces of forgery such as blurring,noise adding and lossy compression.The proposed detecion method is based on a group of featur...