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Proceedings ArticleDOI

Partial image encryption using block wise shuffling and chaotic map

TLDR
The analysis and experimental results show that the proposed scheme can achieve the concept of partial encryption and the MSE and NPCR comparison of proposed technique with the existing encryption techniques shows that it gives better security than the existing techniques.
Abstract
Multimedia security has become extremely important with the extensive use of multimedia data over the open-natured wireless channel. The total encryption performed by other techniques like SCAN based technique is very complex in nature and consumes a lot of computational time. However, certain applications like Pay-TV or Payable Internet Imaging Albums do not require total encryption, but requires a part of the multimedia data to be transparent to all users. This paper presents a partial image encryption based on block wise shuffling with the help of chaotic map. Pixel positions are permuted with in the block by using chaotic map. Partial encrypted images are obtained by selecting the different block size. The MSE and NPCR comparison of proposed technique with the existing encryption techniques shows that the proposed technique gives better security than the existing techniques. Decryption follows the reverse process of encryption. The analysis and experimental results show that the proposed scheme can achieve the concept of partial encryption.

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Citations
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Journal ArticleDOI

An efficient and robust image encryption scheme for medical applications

TL;DR: Simulation results demonstrate high performance of the proposed scheme and show its robustness against cryptanalytic attacks, thus confirming its suitability for real-time secure image communication.
Proceedings ArticleDOI

Partial encryption of medical images by dual DNA addition using DNA encoding

TL;DR: Simulation result shows that the proposed algorithm suitable for the medical information security, based on dual DNA addition with combined chaotic map, is suitable.
Journal ArticleDOI

A selective bitplane image encryption scheme using chaotic maps

TL;DR: It is shown that the proposed partial encryption scheme saves around 35% computation on the image database used here, and different types of attacks against this scheme are analysed to show the robustness of this approach.
Proceedings ArticleDOI

A new chaos-based secure image encryption scheme using multiple substitution boxes

TL;DR: Extensive security analysis show that the proposed scheme provides an efficient security for digital images using two chaotic maps and substitution boxes for secure image encryption/decryption scheme.
Proceedings ArticleDOI

A Comparative Study on the Recent Smart Mobile Phone Processors

TL;DR: The distinctive features, merits, and demerits of the latest mobile phone processors of different Tech companies are discussed.
References
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Journal ArticleDOI

Image quality assessment: from error visibility to structural similarity

TL;DR: In this article, a structural similarity index is proposed for image quality assessment based on the degradation of structural information, which can be applied to both subjective ratings and objective methods on a database of images compressed with JPEG and JPEG2000.
Journal ArticleDOI

A universal image quality index

TL;DR: Although the new index is mathematically defined and no human visual system model is explicitly employed, experiments on various image distortion types indicate that it performs significantly better than the widely used distortion metric mean squared error.

Techniques for a selective encryption of uncompressed and compressed images

TL;DR: This paper describes several techniques to encrypt uncompressed and compressed images and develops a scheme called multiple selective encryption, which is proven not to interfere with the decoding process in the sense that it achieves a constant bit rate and that bitstreams remain compliant to the JPEG specifications.
Journal ArticleDOI

Selective image encryption using a spatiotemporal chaotic system.

TL;DR: A universal selective image encryption algorithm, in which the spatiotemporal chaotic system is utilized, is proposed to encrypt gray-level images and is extended to encrypt RGB color images, showing high security and efficiency.
Journal ArticleDOI

Design of image cipher using latin squares

TL;DR: A symmetric-key Latin square image cipher (LSIC) for grayscale and color image encryption is introduced that has many desired properties of a secure cipher, shows robustness against different attack models, and outperforms state of the art suggested by many peer algorithms.