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Multi-backup image hiding and restoring method based on weight

A technology of image hiding and restoration method, which is applied in the direction of image communication, electrical components, etc., can solve the problems of low robustness of the algorithm and difficulty in recovering secret information, etc., and achieve the goal of increasing the amount of hiding, reducing the amount of hiding, and improving security Effect

Active Publication Date: 2018-11-09
苏州京日科技有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

Cutting the intercepted image in the channel is a common way of destruction, but the above method is difficult to recover secret information from part of the cut image, and the robustness of the algorithm is not high

Method used

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  • Multi-backup image hiding and restoring method based on weight
  • Multi-backup image hiding and restoring method based on weight
  • Multi-backup image hiding and restoring method based on weight

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Experimental program
Comparison scheme
Effect test

Embodiment

[0063] A weight-based multi-backup image hiding and restoration method comprises the following steps:

[0064] 1) Image information hiding: the image information hiding includes,

[0065] (1) Carry out information hiding according to multiple backup information: such as figure 1 As shown, the hidden image is selected as an 8-pixel image, and the hidden image is divided into 8 image blocks, and each image block is used as a set of hidden information. In this example, each set of hidden information contains one pixel, and the hidden capacity of each set is 8 bits, the hidden information corresponding to the i-th (1≤i≤8) image block is s i . the s 1 ,s 2 ,s 3 ,s 4 ,s 5 ,s 6 ,s 7 ,s 8 The corresponding hidden pixels are 178, 178, 148, 188, 188, 146, 218, 234, and the binary hidden information groups formed by the arrangement of pixel bits from low to high are respectively {01001101}, {01001101}, {00101001}, { 00111101}, {00111101}, {01001001}, {01011011}, {01010111}, the...

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Abstract

The invention discloses a multi-backup image hiding and recovering method based on weight. The method is characterized by comprising the following steps that 1) image information is hidden, and 2) hidden images are restored, wherein in the first step that the image information is hidden, (1) the image information is hidden according to the multiple backup information, (2) the hidden number is determined according to the weight, and (3) hiding is carried out according to the weight. According to the method, high orders of the pixels of the hidden images restored through the method are more, andthe restored hidden images has a relatively high peak signal-to-noise ratio.

Description

technical field [0001] The invention relates to the fields of image processing and information security, in particular to a weight-based multi-backup image hiding and restoring method. Background technique [0002] With the development of network technology, information security has attracted people's attention. As an important research field of information security, information hiding has been widely used. The purpose of information hiding is to embed secret information into the carrier, so that the interceptor cannot perceive the existence of secret communication, so as to realize secure communication. [0003] There are two main types of information hiding: irreversible and reversible information hiding. Existing irreversible information hiding methods include: least significant bit based hiding method, pixel difference based method and modulo operation based hiding method. The least significant bit-based hiding method is to first correspond the secret bit to the pixel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/32
CPCH04N1/32288
Inventor 张显全董玉俞春强唐振军陈艳
Owner 苏州京日科技有限公司
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