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Information hiding transmission method based on hybrid image processing

A technology of information hiding and transmission method, which is applied in the field of data transmission and information hiding transmission based on image mixing processing, which can solve the problems of small hiding capacity, limited use occasions, inconvenient data transmission, etc., and achieve the effect of large hiding capacity in the airspace

Active Publication Date: 2018-09-11
XIAN INSTITUE OF SPACE RADIO TECH
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AI Technical Summary

Problems solved by technology

[0003] Information hiding is divided into lossy hiding and lossless hiding methods. The lossy hiding method has a relatively large hiding capacity, but there is a certain amount of information loss between the restored image and the original image after hiding. As long as the subjective and objective evaluation indicators meet the requirements, it does not have much application in practice. influences
Lossless hiding method There is no information loss between the restored image and the original image after hiding, but the hiding capacity is very small, the application occasions are limited, and it is not convenient for data transmission

Method used

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  • Information hiding transmission method based on hybrid image processing
  • Information hiding transmission method based on hybrid image processing

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Embodiment Construction

[0029] like figure 1 As shown, in order to verify the performance of the combination method of compression and hiding proposed in this paper, four 8-bit grayscale image data with a size of 512×512 are used for simulation in the simulation experiment.

[0030] Use peak signal to noise ratio (Peak Signal to Noise Ratio, PSNR), hidden capacity C and other indicators to measure the performance of the hidden algorithm. For an 8bit digital image of size H×W, PSNR is defined as follows:

[0031]

[0032] In the formula, MSE is the mean square error between the original image and the dense image.

[0033] Specific steps are as follows:

[0034] 1. An information hiding transmission method based on image mixing processing, the steps are as follows:

[0035] 1) The image is partitioned by condition:

[0036] Divide the original image A (size 512*512) into blocks to obtain non-overlapping blocks with a size of 8*8, and calculate the grayscale change parameter of each pixel value. ...

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Abstract

The invention provides an information hiding transmission method based on hybrid image processing. An original image is pre-processed into an airspace-transform domain hybrid image; due to block optimization and hybrid processing, massive information hiding on optimized airspace data is directly carried out; therefore, the image hiding capacity and the hiding recovery image quality are improved; and the information hiding transmission method based on hybrid image processing has the characteristics of being high in performance, low in complexity and easy in software and hardware implementation,and has practical value in all kinds of image information hiding transmission systems.

Description

technical field [0001] The invention relates to a data transmission method, in particular to an information hiding transmission method based on image mixing processing, and belongs to the field of communication (such as data communication technology, etc.). Background technique [0002] Data transmission and image processing are important research topics in the field of communication at present. With the development of science and technology, people's demand for high-resolution images is increasing, and data compression is imperative. [0003] Information hiding is divided into lossy hiding and lossless hiding methods. The lossy hiding method has a relatively large hiding capacity, but there is a certain amount of information loss between the restored image and the original image after hiding. As long as the subjective and objective evaluation indicators meet the requirements, it does not have much application in practice. influences. The lossless hiding method has no info...

Claims

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Application Information

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IPC IPC(8): H04N1/32
CPCH04N1/32272
Inventor 周诠刘娟妮呼延烺回征张茗茗魏佳圆
Owner XIAN INSTITUE OF SPACE RADIO TECH
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