Image hiding algorithm based on block random scrambling and grayscale transformation

Yuefen Chen; Junhuan Lin; Shiqing Zhang; Caiming Chen

doi:10.1117/12.868947

21 July 2010 Image hiding algorithm based on block random scrambling and grayscale transformation

Yuefen Chen, Junhuan Lin, Shiqing Zhang, Caiming Chen

Proceedings Volume 7749, 2010 International Conference on Display and Photonics; 77490Y (2010) https://doi.org/10.1117/12.868947
Event: 2010 International Conference on Display and Photonics, 2010, Nanjing, China

Abstract

A new image scrambling algorithm is proposed in this paper. The secret image is encrypted by both random scrambling based on blocks and grayscale transformation based on a pseudo-random sequence, using two keys respectively. The information embedding is implemented in the space domain through replacing the low four bits of the host image pixels with the high four bits of the secret image pixels. A simple system of image hiding and extraction using the proposed algorithm based on Matlab is realized, and its resistance to noising and cropping is analyzed Simulation results show that the proposed algorithm can extract the hided image without knowing the host image information, and has the advantages of simple implementation, large hiding capacity and good safety performance.

Citation Download Citation

Yuefen Chen, Junhuan Lin, Shiqing Zhang, and Caiming Chen "Image hiding algorithm based on block random scrambling and grayscale transformation", Proc. SPIE 7749, 2010 International Conference on Display and Photonics, 77490Y (21 July 2010); https://doi.org/10.1117/12.868947

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