Information hiding method of 3-dimensional reference matrix based on mini Sudoku matrix

A reference matrix and information hiding technology, applied in the field of reference matrix information hiding, can solve problems such as irregular pictures, achieve considerable embedding efficiency, ensure time efficiency, and good image quality

Active Publication Date: 2022-02-22
绍兴图信物联科技有限公司 +1
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Problems solved by technology

One of the methods is to encrypt data through encryption algorithms such as asymmetric encryption algorithm (RSA) and data encryption standard (DES), but this encryption method will form irregular pictures, which is very easy to cause malicious attacks reader's attention

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  • Information hiding method of 3-dimensional reference matrix based on mini Sudoku matrix
  • Information hiding method of 3-dimensional reference matrix based on mini Sudoku matrix
  • Information hiding method of 3-dimensional reference matrix based on mini Sudoku matrix

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Embodiment Construction

[0039] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0040] In a preferred embodiment of the present invention, a kind of 3-dimensional reference matrix information hiding method based on mini Sudoku matrix is ​​provided, and its specific steps are as follows:

[0041] Step 1: Construct a 3D Cubic reference matrix, such as figure 1 It is a schematic diagram of the 3D Cubic reference matrix. The 3D Cubic reference matrix M=[m(i, j, k)] i，j，k∈(0～255) The following characteristics must be met at the same time:

[0042] 1) The Cubic reference matrix is ​​a spatial matrix with a size of 256×256×256;

[0043] 2) The Cubic matrix contain...

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Abstract

The invention discloses an information hiding method of a 3-dimensional reference matrix based on a mini sudoku matrix. Firstly, construct a 3D Cubic reference matrix model; secondly, according to the difference table, secret information value and pixel value characteristics, the addressing modification is carried out in the external hidden layer, and the secret information is hidden, and the corresponding space search area is obtained; after that, in The default value of the corresponding space search area is modified, and the secret information is hidden in the inner hidden layer; finally, the value of the pixel group is modified according to the coding coordinates of the inner and outer hidden layers, and the hidden image embedded with the secret information is obtained. Experimental results show that the present invention not only can achieve better image quality and higher embedding capacity, but also has very considerable embedding efficiency and can realize real-time embedding. In addition, according to the algorithm proposed by the present invention, the 3-dimensional reference matrix can still be deduced into an N-dimensional reference matrix, and the time efficiency of information embedding is still guaranteed.

Description

technical field [0001] The invention belongs to the field of reference matrix information hiding, and in particular relates to an information hiding method of a 3-dimensional reference matrix based on a mini Sudoku matrix. Background technique [0002] In the Internet age, a large amount of digital information is transmitted through an open network, so how to ensure the security of information has become a global discussion issue. Information hiding is a technique of hiding secret data in images, which can effectively prevent secret data from being intercepted by malicious attackers. [0003] Today, there are two typical schemes in the field of information hiding that can improve the security of information during transmission. One of the methods is to encrypt data through encryption algorithms such as asymmetric encryption algorithm (RSA) and data encryption standard (DES), but this encryption method will form irregular pictures, which is very easy to cause malicious attac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/32G06F17/16G06F21/60
CPCH04N1/32149G06F17/16G06F21/602G06F21/606G06F2221/2107
Inventor 许舒颖张真诚刘燕君洪集辉袁文强李黎
Owner 绍兴图信物联科技有限公司
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