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中文摘要：
为了提高图像置乱性能，把具有非周期性、遍历性、伪随机性和对初值的高度敏感性的混沌系统应用到图像置乱中，提出了基于混沌的数字图像置乱算法。为了得到最好的置乱效果，采用混合蛙跳算法来优化置乱算法的参数。通过算法的仿真实验表明该算法具有较好的置乱效果，并具有较强的抗剪切攻击和抗噪声攻击能力。
英文摘要：
In order to improve performance of image scrambling, applied chaos system to image scrambling, which was ex- tremely sensitive for initial value, aperiodic, ergodic and pseudo-random. Then proposed a new digital image scrambling algo- rithm based on chaos. In order to get the best scrambling effect, used shuffled frog leaping algorithm to optimize parameters of the proposed algorithm. The emulation experiments show that the proposed algorithm has good scrambling effect and strong ability in resisting shear attacks and noise attacks.
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