An Information Steganography Algorithm Based on Double Perturbation Scoring of Binary Image Based on STC Code
A binary image, dual technology, applied in the field of information hiding, to achieve the effect of small embedding disturbance, good imperceptibility, and high security performance
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[0064] Such as figure 1 , figure 2 as well as image 3 As shown, the embedding process of an information steganography algorithm based on STC-coded binary image double perturbation scoring includes the following steps:
[0065] (1) Use the crmiLTP disturbance measurement method to calculate the disturbance score map D of the carrier image X, obtain the disturbance score score1(x,y) of each pixel, and filter the embeddable point set C 1 ;
[0066] (2) Flip the embeddable point set C sequentially 1 Pixels at the included positions, recalculate the image S 1 Disturb the map D' to get the perturbation score score2(x,y) of each pixel;
[0067] (3) Set the threshold T 2 , when both score1(x,y) and score2(x,y) are less than T 2 , from the steganographic image S 1 Filtering embeddable point sets in C 2 ;
[0068] (4) Remove point set C 2 Neighborhood pixels, filter out the embeddable point set C 3 ;
[0069] (5) Set the threshold T 3 , make the difference between score1...
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