针对传统Arnold反变换需要先计算出变换周期和恢复图像时间较长的弱点,提出了快速Arnold反变换方法,该方法利用6个方程组求解得到.实验证明该方法可行、效果好,大大节省了恢复原始图像的时间,提高了传统Arnold算法的效率,同时具有良好的鲁棒性.
Traditional Arnold inverse transformation needs to calculate the cycle of transformation, and it spends on more times in images recovery. In this paper a recovery method of hidden digital image based on fast Arnold inverse transformation is proposed. It needs to solve six equations set. Experimental results show the proposed method has high robustness, improves the efficiency of image restoration than the traditional Arnold inverse transformation.