Grayscale-based block scrambling image encryption using YCbCr color space for encryption-then-compression systems
نویسندگان
چکیده
منابع مشابه
Efficient Grayscale Image Encryption Then Compression System
In secret communication, images are widely used and the major issues are how to protect the image and also reduce size of the image in order to maximize the network utilization. Various techniques are there in order to secure the image and to reduce the size of the image. In many practical scenarios, encryption of an image has to be conducted before the image compression. In proposed scheme, bo...
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Nowadays, with the development of Internet technology and the improvement of safety awareness, image encryption technique has become very important, especially for color image encryption. The direction of research is focused on the RGB color space. There are few researches in other color spaces, such as HSVL*a*b*, YCbCr. In this paper, we propose a color image encryption method in YCbCr color s...
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A novel single-channel color image encryption algorithm is proposed, which utilizes the reality-preserving fractional discrete cosine transform in YCbCr space. The color image to be encrypted is decomposed into Y, Cb, and Cr components, which are then separately transformed by Discrete Cosine Transform (DCT). The resulting three spectra sequences, obtained by zig-zag scanning the spectra matric...
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1. Seredynski M, Bouvary P.Block cipher based on reversible cellular automata. New Gener Comput 2005 ; 23: 245–58 (Ohmsha Ltd and Springer) 2. Faraoun Kamel,” Fast encryption of RGB color digital images using a tweakable cellular automaton based schema Optics & Laser Technology 64 (2014) 145–155 3. Toffoli TT ,Margolus N.Invertible cellular automata : a review . Physica D 2001;45:229–53. 4. Sza...
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ژورنال
عنوان ژورنال: APSIPA Transactions on Signal and Information Processing
سال: 2019
ISSN: 2048-7703
DOI: 10.1017/atsip.2018.33