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A Histogram-based Robust Information Hiding Transmission Method

A transmission method and information hiding technology, which are applied in image communication, digital video signal modification, electrical components, etc. The effect of improving the quality of recovery

Active Publication Date: 2016-06-01
XIAN INSTITUE OF SPACE RADIO TECH
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  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, provide a robust information hiding transmission method based on histogram, and solve the problem that the conventional histogram shift information hiding algorithm does not have robustness

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  • A Histogram-based Robust Information Hiding Transmission Method
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Embodiment Construction

[0024] The present invention will be further introduced below in conjunction with the accompanying drawings.

[0025] A histogram-based robust information hiding transmission method of the present invention, the steps are as follows:

[0026] 1) Obtain the pixel statistical histogram of the input image to be processed, let x represent the gray value of the input image, x∈[0,255], let h(x) represent the number of samples whose value is x in the statistical histogram of the input image number; set the peak value of the histogram as h(p), and the gray value of the peak point is p;

[0027] 2) Set d as the threshold value of the robust interval, d≥1; set the threshold T of the histogram value, the initial value of T is 0, and look for robust intervals A and B;

[0028] 21) Search the histogram h(x) in the interval [0,255], put the x corresponding to h(x)≤T into the set S1; arrange the elements in the set S1 from small to large to get the set S, the set S The number of elements i...

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Abstract

The invention discloses a robustness information hiding and transmitting method based on a column diagram. The method is mainly used for hiding lossless information in an image. Current typical lossless information hiding algorithms are based on column diagram displacement, the problems that hidden information can not be extracted due to image compression errors or image transmission errors, and robustness is unavailable are solved. The robustness information hiding and transmitting method based on the column diagram is a novel method, the processing such as substitution of the peak point of the column diagram is conducted by searching for the peak point of the column diagram and a robustness range, displacement of the column diagram is not needed, the method based on the column diagram has obvious robustness, and compared with a JPEG 2000 method, the compression can be improved by 2 times to 8 times. The robustness information hiding and transmitting method based on the column diagram is low in complexity and easy to realize, and high-quality recovery of carrier images after information extraction is facilitated.

Description

technical field [0001] The invention relates to a method for image communication, in particular to a method for information hidden transmission, which belongs to the field of communication (such as data communication technology, etc.). Background technique [0002] With the development of technology, image data transmission efficiency and transmission security become more and more important. 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, thereby realizing the transmission of secret information and images. [0003] For remote sensing images, medical images and legal images, it is required that the carrier image can be recovered as much as possible after the secret information is extracted. Under this requirement, a reversible information hiding algorithm is produced, also known as a lossless information hiding algorithm. The lossless informati...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N1/32H04N19/467
Inventor 周诠方海张怡呼延烺李静玲崔涛
Owner XIAN INSTITUE OF SPACE RADIO TECH
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