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Communication between devices and data through networks have been increasing drastically in the past few decades. Encryption of data provides high level of security. This paper presents a median based technique for selective encryption where partial data of image is encrypted based on pixel values. An encrypted mask of the image is also appended with the image that specifies the pixels that are encrypted...
The using of binary affine transformation for simultaneous encryption-decryption of two images the same dimension that are clearly marked internal contours.
In recent years, various image encryption algorithms based on chaos-based image cryptosystems have been proposed. In this paper, a design of the compound one-dimensional chaotic function by coupling piecewise nonlinear chaotic map and nearest-neighboring coupled-map lattices (NCML) suggests self-adaptive color image encryption. The coupling and nonlinear structure of the compound chaotic function...
This paper proposed an image encryption algorithm based on 3D Lorenz chaos sequences. Firstly, the algorithm generates TWO sequences based on ranking two chaos sequences, and scrambles the position of color image. Then the RGB value of pixel of the scrambled color image is shuffled by the ranking of three chaos sequences, so the color encryption is realized. This results show that this algorithm has...
A novel scheme for the embedding XML file in a 24-bit BMP color image using steganographic technique is presented in this paper. The lab color space is used instead of the RGB color space which is found to be more suitable for watermarking application. The XML file that is to be embedded is encrypted by providing a password and decrypted during watermark detection phase. The watermark detection process...
Compression of encrypted data is possible by using distributed source coding. In this paper, we consider the encryption, followed by lossless compression of gray scale and color images. We propose to apply encryption on the prediction errors instead of directly applying on the images and use distributed source coding for compressing the cipher texts. The simulation results show that by using the proposed...
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