In order to improve the deficiencies of existing image restoration algorithms and accelerate its speed, through the study of Hopfield neural network, we proposed a digital image scrambling method of nonlinear mapping characteristics, and by using overlapped block technique, the time and space complexity reduced. Compared with the Arnold transformation, Fibonacci transformation, affine transformation and other scrambling methods, this method has better effective on noise resistance, JPEG compression, shear resistance attacking than...
