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Adaptive steganography method based on contourlet transform

Sajedi, H ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1109/ICOSP.2008.4697237
  3. Publisher: 2008
  4. Abstract:
  5. In this paper, a new adaptive steganographic scheme based on contourlet transform is presented that provides large embedding capacity. In this method, embedding is done in contourlet transform domain. The contourlet coefficients with larger magnitude that correspond to the edges are selected for embedding. This selection is due to less sensitivity of human eyes to non-smooth regions. Each bit of secret data is embedded by exchanging the value of two coefficients in a 4×4 block of a contourlet subband. The proposed method is examined with two strong steganalysis algorithms and the results show that we could successfully embed data in a cover image with the capacity of 0.05 bits per pixel. Experiments and comparative studies showed the effectiveness of the proposed technique in generating stego images. In addition, its superiority is shown by comparison with a similar wavelet-based steganography approach. © 2008 IEEE
  6. Keywords:
  7. Comparative studies ; Contourlet ; Contourlet coefficients ; Contourlet transform ; Cover-image ; Embedding capacity ; Human eye ; Non-smooth ; Secret data ; Steganalysis ; Steganographic schemes ; Steganography ; Stego image ; Sub-band ; Cryptography ; Signal processing ; Edge detection
  8. Source: 2008 9th International Conference on Signal Processing, ICSP 2008, Beijing, 26 October 2008 through 29 October 2008 ; December , 2008 , Pages 745-748 ; 9781424421794 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4697237