An Image Hiding Scheme Using 3D Sawtooth Map and Discrete Wavelet Transform
Автор: Ruisong Ye, Wenping Yu
Журнал: International Journal of Image, Graphics and Signal Processing(IJIGSP) @ijigsp
Статья в выпуске: 6 vol.4, 2012 года.
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An image encryption scheme based on the 3D sawtooth map is proposed in this paper. The 3D sawtooth map is utilized to generate chaotic orbits to permute the pixel positions and to generate pseudo-random gray value sequences to change the pixel gray values. The image encryption scheme is then applied to encrypt the secret image which will be imbedded in one host image. The encrypted secret image and the host image are transformed by the wavelet transform and then are merged in the frequency domain. Experimental results show that the stego-image looks visually identical to the original host one and the secret image can be effectively extracted upon image processing attacks, which demonstrates strong robustness against a variety of attacks.
Chaotic encryption, Sensitivity, Ergodicity, 3D sawtooth maps, Image hiding
Короткий адрес: https://sciup.org/15012334
IDR: 15012334
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