A high-capacity information hiding transmission method with controllable carrier quality

A technology of information hiding and transmission method, which is applied in image communication, selective content distribution, image data processing, etc. It can solve the problems of low capacity of hiding algorithm and uncontrollable quality of carrier image restoration, so as to improve embedding capacity and facilitate staring Apply on the Internet and realize the effect of blind extraction

Active Publication Date: 2017-07-28
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, provide a high-capacity information hiding transmission method with controllable carrier quality, and solve the problems of low capacity of the existing concealment algorithm and uncontrollable quality of carrier image restoration

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  • A high-capacity information hiding transmission method with controllable carrier quality
  • A high-capacity information hiding transmission method with controllable carrier quality
  • A high-capacity information hiding transmission method with controllable carrier quality

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Embodiment Construction

[0036] Such as Figure 7 As shown, the method of the present invention is a high-capacity information hiding transmission method with controllable carrier quality, and the steps are as follows:

[0037] 1) Group the carrier image A with a pixel size of M×N according to the capacity to be embedded 1 / P; P is a positive integer; the specific process is: divide the pixels of the carrier image A into non-overlapping groups in sequence, where each group The pixels are all x0, x1,...,xm, and the m / (m+1) is greater than or equal to the relative capacity 1 / P, where m is a positive integer;

[0038] 2) The secret information S to be hidden is sequentially formed into a byte every 8 bits, and every m bytes in the sequence are divided into groups, and the pixels of each group are s1, s2,..., sm, and m is a positive integer;

[0039] 3) Find a group suitable for information hiding in the carrier image A; the specific process is:

[0040] 31) Calculate and obtain the maximum pixel differe...

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Abstract

The invention discloses a high-capacity information concealment transmission method with controllable carrier quality, which is mainly used for information concealment transmission. While the existing information hiding methods recover the hidden information, the quality of the carrier image will deteriorate, sometimes to a very serious degree. It can be said that the quality of the carrier image is uncontrollable. The present invention proposes a new method of information hiding, which controls the quality of the restored carrier image through a threshold, which not only ensures that the receiving end can extract the hidden secret information without loss, but also makes the sending end know in advance the information recovered after the receiving end extracts the information. The quality of the carrier image can even restore both the secret information and the carrier image without distortion at the same time. Compared with the existing information hiding algorithm, it has a larger hidden capacity, and the relative capacity is better than 1 / 4, up to 1 / 2.

Description

technical field [0001] The invention relates to an image communication method, in particular to a high-capacity information hiding transmission method with controllable carrier quality, which belongs to the field of communication (such as data communication technology, etc.). Background technique [0002] Information hiding (also known as data hiding) is to use human visual redundancy to embed secret information into the carrier to achieve the purpose of secure transmission of secret information. It is an important branch of information security. [0003] With the development of science and technology, it becomes more and more important to improve the efficiency of image data transmission. Through information hiding (also known as data hiding) technology, it is possible to embed secret information in the image for transmission without changing the size of the image, so as to realize the integrated transmission of secret information and images. However, the current typical i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/32H04N21/8358G06T1/00
Inventor 周诠黎军张怡方海朱历洪呼延烺李静玲
Owner XIAN INSTITUE OF SPACE RADIO TECH
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