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 proposed method preserves better quality and works faster. Risks of quantization estimation and global histogram analysis can also be avoided.

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