Chaos-based image compound encryption and multi-level information-hiding algorithm
Jing Sun · Computer Engineering and Applications Journal · 2008
This essay has brought forward one kind of the image compound encryption algorithm which is based on chaotic mapping and gray substitution,and have adopted one-dimension logistic chaotic sequences to confuse the image ranks respectively,and has combined with gray substitution.The algorithm possesses high security.An new DCT-based information-hiding algorithm is proposed by making use of Human Visional System’s(HVS) character,and choosing the appropriate modulus after image frequency region varies,adjusting it’s odd-even mantissa,to reach the purpose,and to expand it to multi-level information-hiding technology based on other varying region,the experiments testify it has possessed the merit of high capacity,strong robust and drawing blindly.