Image fusion encryption method based on DNA sequences and multiple chaotic mappings
A technology of DNA sequence and chaotic mapping, which is applied in the fields of DNA calculation and digital image encryption, can solve the problems of expensive biological experimental equipment, difficult control of the experimental environment, and high experimental sensitivity
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[0059] combine figure 1 The implementation process of the present invention will be described in detail, but not limited to this embodiment.
[0060] In the MATLAB7.1 environment, for two standard grayscale images of 256×256, the x 0 =0.3000000001,y 0 = 0.2000000001, z 0 = 0.6000000001, μ 1 = 3.6000000001, μ 2 =-0.5000000001, μ 3 =3.9000000001 to carry out the simulation experiment.
[0061] Step 1: Input lena grayscale image A(m,n) and template image B(m,n) see attached image 3 (a), (b), m, n are the row and column dimensions of images A and B, where m=256, n=256. Images A and B can be expressed in matrix form as shown in formula (5):
[0062] A = 101 107 . . . 203 ...
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