基于模式识别的图像检测研究

Research on Image Detection Based on Pattern Recognition

一幅图像经过后期的剪切、拼接合成后,重新保存为JPEG图像,是许多图像伪造者篡改图像的方式之一。针对JPEG格式的篡改图像,本文提出了一种新的研究方法,首先根据JPEG图像本身的块效应测度来识别被检测图像是否经过剪切和拼接,然后通过图像子块之间的相关性进行篡改区域定位。通过实验结果显示,本文研究的方法效果较好。

It is one of the ways that many image forgers tamper with images that an image is saved as a JPEG image after being cut and stitched in the later period.In this paper,Tampering images for JPEG format,a new research method is proposed.Firstly,the block effect measure of JPEG image is used to identify whether the detected image has been cut and spliced,and then the tampering area is lo-cated by the correlation between image subblocks.The experimental results show that the proposed method has an effective results.