A generalized Benford's law for JPEG coefficients and its applications in image forensics

  title={A generalized Benford's law for JPEG coefficients and its applications in image forensics},
  author={Dongdong Fu and Yun Q. Shi and Wei Su},
  booktitle={Security, Steganography, and Watermarking of Multimedia Contents},
In this paper, a novel statistical model based on Benford’s law for the probability distributions of the first digits of the block-DCT and quantized JPEG coefficients is presented. A parametric logarithmic law, i.e., the generalized Benford’s law, is formulated. Furthermore, some potential applications of this model in image forensics are discussed in this paper, which include the detection of JPEG compression for images in bitmap format, the estimation of JPEG compression Qfactor for JPEG… CONTINUE READING
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