Antistatistical analysis image LSB information hiding method based on chaos system
A chaotic system and statistical analysis technology, applied in transmission systems, image data processing, digital transmission systems, etc., can solve the problem of ineffective resistance to RS analysis method attacks, and achieve high security, strong practicability, and easy implementation.
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[0016] 1. Principle of RS analysis method
[0017] Literature [3] gives the principle of RS analysis method. Assume that the pixel values in the carrier image belong to a set V. For example, for an 8-bit grayscale image, V={0, 1, Λ, 255}. Use the description function f to examine the image spatial correlation, f represents a real number f(v 1 ,Λ,v n ) and a pixel group G=(v 1 ,Λ,v n ) between the corresponding relationship. For example: use
[0018] f ( v 1 , v 2 , Λ , v n ) = Σ i = 1 n - 1 | v i + 1 - ...
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