An image self-hiding method with controllable transmission quality

A technology for transmitting quality and images, applied in the field of communication, can solve problems such as potential safety hazards, confusing interceptors, etc., and achieves the effects of strong practicability, easy implementation, and reduced feature data volume

Active Publication Date: 2017-05-10
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the potential safety hazards existing in the existing image transmission technology, to provide a self-concealment method for images with controllable transmission quality, to convert the images in the transmission process into low-quality images, and to recover high-quality images Even if the low-quality image is intercepted by the interceptor, it will not leak important information, so as to "hide" the real quality of the image and confuse the interceptor, while the legitimate user can be harmless at the receiving end Or restore the original image with high fidelity, providing a new means for secure image transmission

Method used

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  • An image self-hiding method with controllable transmission quality
  • An image self-hiding method with controllable transmission quality
  • An image self-hiding method with controllable transmission quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] The Lena image of 512×512 is compressed by various compression ratios to obtain a compressed image, and then the original image is decompressed to obtain a difference image and transmitted as a low-quality image. The receiving end can completely restore the original image based on the low-quality image. Since the restored Lena image is different from the original Lena image ( figure 1 ), so no recovery image of Lena is given below. Test results such as Figure 1-Figure 3 As shown, the transmission image (transmission data D) can be as follows figure 2 A low-quality image can also be such as image 3 The low-quality image realizes image self-hiding transmission with controllable transmission quality.

Embodiment 2

[0067] Compress the Baboon image of 512×512 with various compression ratios to obtain a compressed image, and then subtract the compressed image from the original image to obtain a low-quality image. Test results such as Figure 4-Figure 6 As shown, the transmitted image (transmitted data D) can be as follows Figure 5 low-quality images, which can also be such as Figure 6 The low-quality image realizes image self-hiding transmission with controllable transmission quality.

Embodiment 3

[0069] Such as Figure 7-Figure 8 As shown, the transmitted image (transmitted data D) of the Airplane image can be as follows Figure 8 low-quality images.

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Abstract

The invention discloses an image self-hidden method with controllable transmission quality. According to the method, control data reflecting quality characteristics of images to be transmitted are extracted by adopting a compression method with a large compression ratio, low-quality version images of original images to be transmitted are obtained by using images recovered through control data and the original images to be transmitted, and the control data are hidden in the low-quality version images through information for transmission. The images in the transmission process are low-quality versions of the original images to be transmitted rather than the original images, it is not afraid that the images are intercepted, safety of image transmission is increased, and a legal receiving end can recover the original images with high fidelity through the hidden control data.

Description

technical field [0001] The invention relates to a method for image communication, in particular to a method for hiding self-data in an image and recovering the image at a receiving end, belonging to the field of communication (such as data communication technology, etc.). Background technique [0002] Remote sensing images produced by remote sensing satellites, space probes and other spacecraft are important national information and are widely used in various industries. The safe transmission of remote sensing images is an important issue related to national security. Remote sensing images are easily intercepted by interceptors during transmission, resulting in the leakage of relevant information. At the same time, traditional encryption methods are becoming more and more fragile under modern high-performance computing power, so it is particularly important to solve the problem of secure transmission of remote sensing images. Convert the image to be transmitted into a low-q...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/46H04N19/467
Inventor 周诠方海张怡李小军黎军呼延烺李静玲
Owner XIAN INSTITUE OF SPACE RADIO TECH
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