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Double-image encryption scheme combining DWT-based compressive sensing with discrete fractional random transform

OPTICS COMMUNICATIONS 2015年 354卷 112-121页

作者： Zhou, Nanrun Yang, Jianping Tan, Changfa Pan, Shumin Zhou, Zhihong Nanchang Univ Dept Elect Informat Engn Nanchang 330031 Peoples R China Beijing Univ Posts & Telecommun Informat Secur Ctr Beijing 100876 Peoples R China Shanghai Jiao Tong Univ Shanghai Key Lab Integrate Adm Technol Informat S Shanghai 200240 Peoples R China

A new discrete fractional random transform based on two circular matrices is designed and a novel double-image encryption-compression scheme is proposed by combining compressive sensing with discrete fractional random transform. The two random circular matrices and the measurement matrix utilized in compressive sensing are constructed by using a two-dimensional sine Logistic modulation map. Two original images can be compressed, encrypted with compressive sensing and connected into one image. The resulting image is re-encrypted by Arnold transform and the discrete fractional random transform. Simulation results and security analysis demonstrate the validity and security of the scheme. (C) 2015 Elsevier B.V. All rights reserved.

关键词： Compressive sensing Discrete fractional random transform Two-dimensional sine Logistic modulation map image encryption

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Research on improved coarseness based image retrieval

Research on improved coarseness based image retrieval

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Conference on image compression and encryption technologies

作者： Sun, XH Yang, JY Guo, L Nanjing Univ Sci & Technol Dept Comp Nanjing Peoples R China

ISBN: (纸本)0819442798

Coarseness is the most fundamental textural feature and has been much investigated since early studies. This paper improves the previous coarseness algorithm on the selection of neighborhood sizes and the calculation of neighborhood average differences, and the improved coarseness algorithm is presented. Experiments show that the improved coarseness has higher texture discriminability and better rotation invariance, and that the image retrieval result based on the improved coarseness is superior to that based on the previous coarseness.

关键词： coarseness linear quantization local gradient direction image retrieval

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Comparative analysis of chaotic and non-chaotic image encryption schemes 10

Comparative analysis of chaotic and non-chaotic image encryp...

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10th International Conference on Emerging technologies, ICET 2014

作者： Younas, M Bin Ahmad, Jawad Department of Electrical Engineering HITEC University Taxila cantt Pakistan

ISBN: (纸本)9781479960880

In modern era, multimedia technologies have been developed significantly. Multimedia data such as audio, video and image transfers over the internet is open and insecure. Security is required for storage and transmission of digital images to avoid from unauthorized entities. A number of encryption schemes have been developed for security of multimedia data over insecure channel. So, there is a real need to compare encryption schemes that which technique is better for multimedia application. This paper presents the estimation for the good image encryption algorithm. Chaos based image encryption algorithm are used now a days because of better security and good performance. Behaviour of chaotic system is nonlinear, deterministic and sensitive to initial condition. A number of parameters, like correlation coefficient, information entropy, compression friendliness, number of pixels change rate, average intensity and unified average change intensity etc., are used to check the quality of cipher-text image. This work is review of two image encryption schemes, namely compression Friendly encryption Scheme (CFES) and Chaos Based encryption Scheme (CBES). © 2014 IEEE.

关键词： Chaotic systems

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An Unsupervised Learning Approach for Visual Data compression with Chaotic encryption 4

An Unsupervised Learning Approach for Visual Data Compressio...

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4th International Conference on Electrical, Computer and Communication technologies, ICECCT 2021

作者： Ahuja, Bharti Doriya, Rajesh National Institute of Technology Raipur Department of IT Raipur India

ISBN: (纸本)9781665414807

The increased demand of multimedia leads to shortage of network bandwidth and memory capacity. As a result, image compression is more significant for decreasing data redundancy, saving storage space and bandwidth. Along with the compression the next major challenge in this field is to safeguard the compressed data further from the spy which are commonly known as hackers. It is evident that the major increments in the fields like communication, wireless sensor network, data science, cloud computing and machine learning not only eases the operations of the related field but also increases the challenges as well. This paper proposes a worthy composition for image compression encryption based on unsupervised learning i.e. k-means clustering for compression with logistic chaotic map for encryption. The main advantage of the above combination is to address the problem of data storage and the security of the visual data as well. The algorithm reduces the size of the input image and also gives the larger key space for encryption. The validity of the algorithm is testified with the PSNR, MSE, SSIM and Correlation coefficient. © 2021 IEEE.

关键词： Cryptography

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Retrieve based on image content using DC-image

Retrieve based on image content using DC-image

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Conference on image compression and encryption technologies

作者： Wang, QH Mo, YL Shanghai Univ Telecommun Sch Shanghai 200072 Peoples R China

ISBN: (纸本)0819442798

In this paper the method is presented to retrieve based on image content in video database using DC-image. The DC-image with the DC coefficient is extracted from DCT domain of image in this video database model. The principle of DC-image and three different extraction methods of the DC-image from MPEG video stream are described. With the DC-image, temporary segmentation of compress video is realized depending the histogram of DC-image. Comparing the performance of three extracting methods and analyzing the result of DC-image extracted by different methods, we propose a video database structure and feature extraction method. To create the uniform indexing for video clip, the expression format of frame is developed by normalized histogram of DC-image.

关键词： DC-image video database retrieval segmentation

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Embedding strategy of image watermarking in wavelet transform domain

Embedding strategy of image watermarking in wavelet transfor...

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Conference on image compression and encryption technologies

作者： Zhang, ZP Mo, YL Shanghai Univ Dept Commun Engn Shanghai 200072 Peoples R China

ISBN: (纸本)0819442798

In this paper, we study a new strategy to embed watermarks to the scale subband of image wavelet transform domain. The coefficients in scale subband are much bigger than most coefficients in other subband. This means the coefficients in scale subband have higher perceptual capacity than coefficients in other subband to embed watermarks. We also use nonlinear wavelet transform derived from lifting scheme to get bigger scale subband coefficients. The experiment result shows the scheme is robust enough and the image watermarking algorithm using nonlinear wavelet transform is more robust than algorithms using usual wavelet transform.

关键词： image watermarking embedding strategy nonlinear wavelet transform lifting scheme

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The Implementation of Chaotic encryption Scheme for images

The Implementation of Chaotic Encryption Scheme for Images

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IEEE International Conference on Control, Instrumentation, Communication and Computational technologies (ICCICCT)

作者： Veenus, P. K. Vivek, P. K. Sivasankar, K. Dharun, V. S. Noorul Islam Univ Dept CSE Kumaracoil Tamil Nadu India Noorul Islam Univ Dept IT Kumaracoil Tamil Nadu India Noorul Islam Univ Dept ECE Kumaracoil Tamil Nadu India METS Sch Engn Dept ECE Mala Kerala India

ISBN: (纸本)9781467398251

The conventional encryption methods are not appropriate for image cryptography as they contain large amount of data and the pixels have strong correlation. A new approach for chaotic encryption scheme for image is proposed through this paper. This image encryption algorithm is a modification of baptista's chaotic system. Analysis shows that the compression performance and encryption speed of the proposed system is much better.

关键词： Cryptography Chaos Baptista Method image encryption

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Multispectral image watermarking based on KLT

Multispectral image watermarking based on KLT

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Conference on image compression and encryption technologies

作者： Zhang, XP Zhang, KW Wang, SZ Shanghai Univ Shanghai 200072 Peoples R China

ISBN: (纸本)0819442798

This paper describes a triple-layered watermarking scheme employing KLT and two layers of discrete cosine transforms, with data shuffled pseudo-randomly prior to the second DCT. In this way, the watermark is imperceptibly and robustly embedded into a set of multispectral images. The watermark is extractable without original host images. Simulation experiments are carried out to study the anti-attack performance. It is shown that the proposed technique is applicable to color and remote sensed multispectral images.

关键词： watermarking Karhunen-Loeve transform (KLT) discrete cosine transform (DCT) shuffle

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A watermarking algorithm based on permutation and PDF417 coding

A watermarking algorithm based on permutation and PDF417 cod...

引用

Conference on image compression and encryption technologies

作者： Ji, Z Xiao, WW Zhang, JH Shenzhen Univ Fac Informat Engn Shenzhen 518060 Peoples R China

ISBN: (纸本)0819442798

This paper represents a new spatial domain digital watermarking method, which can trade off between spatial domain and frequency domain approaches. This technique produces a watermarked image that closely retains the quality of the original host image while concurrently surviving various image processing operations such as lowpass/highpass filtering, lossy JPEG compression, and cropping. This image watermarking algorithm takes full advantage of permutation and 2-D barcode, which is PDF417 coding. The actual watermark embedding in spatial domain is followed using permutated image for improving the resistance to image cropping. Much higher robustness of watermark is obtainable via forward error correction (FEC) technique, which is the main feature of PDF417 codes. Additional features of this technique include the easy determination of the existence of the watermark and that the watermark verification procedure does not need the original host image.

关键词： digital image watermark permutation 2-D barcode PDF417 Reed-Solomon code

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image retrieval by using sub-piece accumulative histogram

Image retrieval by using sub-piece accumulative histogram

引用

Conference on image compression and encryption technologies

作者： Zhang, LP Ke, XW Shu, H Wuhan Univ Natl Lab Informat Engn Surveying Mapping & Remote Wuhan 430070 Peoples R China

ISBN: (纸本)0819442798

In the algorithms of content-based image retrieval, color has been used widely as the most important visual character. Three key factors for the image retrieval when using color characters are: color expression, color abstraction, and color similarity treasure. In this paper, authors develop a sub-block method based on the color characters to retrieve images. It is found that the image retrieval accuracy of the sub-block histogram method is superior to that of the conventional single global histogram method, but its image retrieval speed is slightly slower than that of the single global histogram method.

关键词： color retrieval sub-block histogram

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