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Noise camouflaged image information hidden transmission method

A technology of image information and transmission method, applied in transmission system, image data processing, image data processing and other directions, can solve the problems of high quality of carrier image and difficult to meet the requirements of hiding method, so as to improve hiding security, improve performance, improve adaptive effect

Active Publication Date: 2017-11-17
XIAN INSTITUE OF SPACE RADIO TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some occasions, we only hope that our side (legal receiver) receives high-quality images, or only hope that the enemy receives poor-quality images or images polluted by noise, and at the same time, the information of the encrypted image will not be lost after data compression. The image quality is still high, and conventional hiding methods are difficult to meet the requirements

Method used

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  • Noise camouflaged image information hidden transmission method
  • Noise camouflaged image information hidden transmission method
  • Noise camouflaged image information hidden transmission method

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Embodiment Construction

[0035] The performance of the present invention is verified by simulation. In the experiment, an 8-bit international standard grayscale image (lena.bmp) with a size of 512×512 is used for information hiding transmission.

[0036] 1). The binary secret information S0 is converted into binary data S (length L) after adding an error correction code, and the method of converting it into noise is as follows:

[0037] S=0 turns into T1, S=1 turns into T2, forming Q1, Q2...QL number,

[0038] T1 is an integer between 0 and 127, and T2 is an integer between 128 and 255;

[0039] L=D*512*512, T1=110, T2=145

[0040] D=1 / 8, C=1 / 64

[0041] 2). Carry out position calibration on the carrier image A1 with size M*N according to the secret information length L, set the pixel value of image A1 as an integer between 0 and 255, the method is as follows:

[0042] Generate L integer pairs X1 and X2 according to the agreed integer generation method, X1 is an integer between 1 and M, X2 is an in...

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Abstract

The invention provides a noise camouflaged image information hidden transmission method. Confidential information is camouflaged into noise to be added in a carrier image to realize camouflage and hiding, and a legal receiver can correctly extract the confidential information and recover the carrier image in a high-quality way through four times of standard compression in transmission; and an illegal receiver cannot obtain the high-quality image after receiving the image including the confidential information and cannot correctly extract the confidential information even the illegal receiver knows that the confidential information is included in the noise. Compared with other similar methods, the information hiding security and robustness can be enhanced, and the method still has the high times of compression (4-8 times of JPEG2000 compression) resistance capacity and the high-quality carrier recovery capacity under the appropriate hiding capacity.

Description

technical field [0001] The invention relates to a data transmission method, in particular to a noise-disguised image information hiding transmission method, which 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, also known as steganography, can be divided into airspace information hiding and transformation domain information hiding. data, data uploaded on the ground, etc.) are hidden in the satellite remote sensing data and transmitted through the open satellite channel, without increasing the transmission rate to achieve concealed communication or to achieve the purpose of expanding the transmission capacity, providing a safe way f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00H04L1/24
CPCG06T1/0021G06T2201/0051H04L1/246
Inventor 周诠回征李萱呼延烺刘娟妮魏佳圆李荣
Owner XIAN INSTITUE OF SPACE RADIO TECH
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