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An Efficient Information Hiding Method Introducing Auxiliary Pixels

An auxiliary pixel and information hiding technology, applied in the field of communication, can solve the problem that the maximum embedded capacity cannot be increased, and achieve the effect of increasing the difficulty, improving the efficiency and improving the hiding efficiency.

Active Publication Date: 2020-05-08
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The FEMD method can hide a bit n in a carrier pixel pair (x, y) 2 Base (n∈N, n≥2) secret information, but its maximum embedding capacity cannot be increased

Method used

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  • An Efficient Information Hiding Method Introducing Auxiliary Pixels
  • An Efficient Information Hiding Method Introducing Auxiliary Pixels
  • An Efficient Information Hiding Method Introducing Auxiliary Pixels

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Embodiment Construction

[0034] While high-speed data is being transmitted, other low-speed data or part of high-speed data is often transmitted at the same time. In addition to transmitting images, other sensor data may also be transmitted. The invention provides a method for data transmission using information hiding technology, which has the characteristics of large hidden capacity, high performance and low complexity, and is practical in spacecraft engineering, ground information carrying transmission systems, and various image transmission systems. value.

[0035] The experiment uses the MATLAB2013a platform, and the carrier data uses six standard grayscale images of 512×512, such as figure 1 As shown, the secret information is generated by a pseudo-random number generator. If the algorithm needs to have higher security, the carrier can be preprocessed with chaotic sequences or some encryption algorithms.

[0036] The present invention introduces an efficient information hiding method of auxil...

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Abstract

The present invention provides an efficient information hiding method of introducing auxiliary pixels. The hiding capacity is irrelevant with the types of the original data and may be the image data or other data, but the hiding quantity is always fixed, so that the efficient information hiding method has the large hiding capacity and the information safety, and is easy to realize by the hardware and software. The method realizes the joint processing of the secret information and the secret keys by introducing the auxiliary pixels and optimizing the data, and a reception terminal can completely recover the secret information and recover the original data with the high quality. The method can hide the information in each pixel of the original image data, enables the hiding efficiency to be improved, breaks through the limit of the conventional method of hiding in a pixel pair (two pixels), enables any image to reach or exceed the 1 / 2 hiding capacity, when the 1 / 2 hiding capacity is realized, enables the PSNR of a carrier image to exceed 41 dB, and is better than the typical hiding methods, for example the least significant bit (LSB) and fully exploiting modification direction (FEMD) hiding methods.

Description

technical field [0001] The invention relates to a data transmission method, in particular to an efficient information hiding method introducing auxiliary pixels, 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. Without affecting the normal business of the image, if some secret data can be hidden in it for transmission, it is equivalent to a certain amount of data compression. [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 c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T1/00
CPCG06T1/0021
Inventor 周诠刘娟妮张释如呼延烺魏佳圆尚社
Owner XIAN INSTITUE OF SPACE RADIO TECH
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