Abstract
In this paper, a new hyperchaotic system without an equilibrium point is proposed and analyzed. A novel steganography technique is advanced by combining the hyperchaotic system, and high steganography capacity is achieved. The secret color image is segmented and quantized for block discrete cosine transformation. The embedded information is compressed using run-length encoding. Finally, the encrypted information is randomly embedded in the least significant bit of cover images. The steganographic images have good imperceptibility and can effectively resist histogram analysis. In addition, to improve the practicability and efficiency of the algorithm, the algorithm is implemented on field-programmable gate array. The hardware implementation methodology provides a promising direction for future image protection studies.
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Acknowledgements
This research is supported by the National Natural Science Foundation of China (Nos: 61702356), Project 1331 of Shanxi Province (Nos: SC9100026).
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Sun, Jy., Cai, H., Gao, Zb. et al. A novel non-equilibrium hyperchaotic system and application on color image steganography with FPGA implementation. Nonlinear Dyn 111, 3851–3868 (2023). https://doi.org/10.1007/s11071-022-07993-4
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DOI: https://doi.org/10.1007/s11071-022-07993-4