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Image compression encryption algorithm based on parallel compressive sensing and Arnold scrambling

An encryption algorithm and image compression technology, applied in the field of image processing, can solve problems such as signal sparsity damage

Inactive Publication Date: 2016-08-31
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional scrambling methods are divided into changing signal amplitude scrambling and changing signal component position scrambling. Changing signal amplitude scrambling is not suitable for scrambling sparse signals, because the change of amplitude may lead to the destruction of signal sparsity.

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  • Image compression encryption algorithm based on parallel compressive sensing and Arnold scrambling
  • Image compression encryption algorithm based on parallel compressive sensing and Arnold scrambling
  • Image compression encryption algorithm based on parallel compressive sensing and Arnold scrambling

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Embodiment Construction

[0030] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0031] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] refer to figure 1 As shown, the present invention proposes an image compression encryption algorithm based on parallel compressed sensing and Arnold scrambling, which performs 2D discrete cosine transform on the...

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Abstract

The invention belongs to the field of image processing technology, and particularly relates to an image compression encryption algorithm based on parallel compressive sensing and Arnold scrambling. Block-based parallel compression sensing technology is utilized. Firstly sparse transform is performed on an image. Then Arnold multiple-iteration scrambling is utilized for performing encryption scrambling on the sparse-transformed image, thereby achieving a purpose of sparseness uniforming. Afterwards parallel compression perception technology based on a random-size block is utilized for performing encryption compression on the image. The image compression encryption algorithm has high flexibility, high safety and high compression performance in encryption compression.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to an image compression encryption algorithm based on parallel compressed sensing and Arnold scrambling. Background technique [0002] Image compression and encryption technology can improve the security and effectiveness of image transmission. Recently, some international scholars have proposed the concept of "encryption compression", which means that encryption and compression are completed in one step at the same time. Such an encryption compression method is suitable for systems with limited hardware resources because of its simple hardware implementation and low computational complexity. [0003] In recent years, compressive sensing theory has been extensively studied to encrypt compressed images, where the measurement matrix is ​​used as the key. However, Rachlin of Accenture Technology Laboratory in the United States proved that compressed sensing canno...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/463H04N19/625
CPCH04N19/463H04N19/625
Inventor 梁伟
Owner XIAMEN UNIV OF TECH