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In accordance with collusion attack, a digital fingerprinting scheme of digital images is studied and proposed by this paper. Different binary chaotic sequences produced by Logistic chaotic map and by means of setting different initialization are chosen to act as digital fingerprints of the protected digital images. Drawing lessons from some effective feasible digital watermarking algorithms, and...
According to the particular properties of discrete chaotic sequences, and combining the structure characters of digital images, obeying the common encryption principles of digital images, a discrete chaotic exclusive OR encryption scheme of digital images is carefully studied and proposed. In the light of the size of a digital image which needs to be encrypted, and producing a corresponding binary...
On the basis of studying the working principle of discrete fuzzy control, according to the structural characteristic and the ability of RBF neural network approaching to any unknown function, the clustering and nonlinear mapping function of RBF neural network are used to implement discrete fuzzy inference and control. If only a RBF neural network is suitably designed and well trained by a discrete...
According to the characteristics of discrete chaotic sequences and basic encrypting principles of information, and organically combining some inherent characteristics of digital images, with a view of high efficiency and perfect effect for encryption and decryption of digital images, meanwhile, and considering the high security of the encrypting algorithm, a discrete chaotic encrypting algorithm of...
To meet well the requirements of transparence, robustness, and security of digital image watermarks at one time, the scrambling technique of digital images and discrete wavelet transform have been organically combined, the watermarking technique of digital images in wavelet transform domain has been seriously studied according to the basic characteristic of human visual system. The performances of...
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