Anti-forensics of digital image compression

Image compression using anti-forensics method

A large number of image forensics methods are available which are capable of identifying image tampering. But these techniques are not capable of addressing the anti-forensics method which is able to hide the trace of image tampering. In this paper anti-forensics method for digital image compression has been proposed. This anti-forensics method is capable of removing the traces of image compres...

Digital Image Forensics

Simplified Anti-Forensics of JPEG Compression

This paper proposes a simplified anti-forensics method for JPEG compression. For a spatial image decompressed from a JPEG file, traces of compression can be tracked by many forensic methods. To conceal these clues of comblike DCT histogram and blocking artifacts, we use the method of image enhancement and filtering. Compared with Stamm’s method of introducing noise into the targeting image, the...

Combating Anti-forensics of Jpeg Compression

This paper proposes a forensic method for identifying whether an image was previously compressed by JPEG. Though some methods have already been proposed for this purpose, Stamm and Liu’s anti-forensic method disables the detection capabilities of these methods. After analyzing the anti-forensics method, we propose to use the decimal histogram of the coefficients to distinguish the never-compres...

Natural image statistics in digital image forensics

Natural Image Statistics for Digital Image Forensics