A new cost function for spatial image steganography

@article{Li2014ANC,
  title={A new cost function for spatial image steganography},
  author={Bin Li and Ming Wang and Jiwu Huang and Xiaolong Li},
  journal={2014 IEEE International Conference on Image Processing (ICIP)},
  year={2014},
  pages={4206-4210}
}
A well defined cost function is crucial to steganography under the scenario of minimizing embedding distortion. In this paper, we present a new cost function for spatial image steganography. The proposed cost function is designed by using a high-pass filter to locate the less predictable parts in an image, and then using two low-pass filters to make the low cost values more clustered. Experiments show that the steganographic method with the proposed cost function makes the embedding changes… CONTINUE READING
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