| 基于位平面随机置乱的数字图像加密方法 |
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| 引用本文： | 孙秋冬,左健存,马文新,等. 基于位平面随机置乱的数字图像加密方法[J]. 上海第二工业大学学报, 2009, 26(4): 269-273 |
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| 作者姓名： | 孙秋冬 左健存 马文新 等 |
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| 作者单位： | 上海第二工业大学电子与电气工程学院,上海,201209 |
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| 基金项目： | 上海市教育委员会重点学科基金，上海市教育委员会科研创新基金 |
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| 摘 要： | 为了实现像素位置调换置乱和像素值改变置乱相结合的目的,提出了一个基于位平面的图像置乱方法：先对图像进行位平面分解,然后用随机置乱方法对各位平面图像分别进行位置调换的置乱,最后将经过置乱的各位平面图像重构为一幅置乱后的图像。试验结果表明,与著名的Arnold变换算法相比,该方法效率更高、置乱效果更好,且置乱度相当稳定。
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| 关 键 词： | 图像置乱 图像加密 位平面 随机交换 |
Digital Image Encryption Method Based on Random Scrambling in Bit Planes |
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| SUN Qiu-dong,ZUO Jian-cun,MA Wen-xin,DAI Hong. Digital Image Encryption Method Based on Random Scrambling in Bit Planes[J]. Journal of Shanghai Second Polytechnic University, 2009, 26(4): 269-273 |
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| Authors: | SUN Qiu-dong ZUO Jian-cun MA Wen-xin DAI Hong |
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| Affiliation: | SUN Qiu-dong,ZUO Jian-cun,MA Wen-xin,DAI Hong(School of Electronic and Electrical Engineering,Shanghai Second Polytechnic University,Shanghai 201209,P.R.China) |
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| Abstract: | To reach the scrambling aim of combination of pixels positions interchange and their values change,a random image scrambling method based on bit planes is proposed.A gray image is divided into several bit planes,which can be shuffled by a random scrambling algorithm.The scrambled image is reconstructed from those shuffled bit plane images.Experiments show that the algorithm is effective and has better efficiency and steady scrambling degree than the Arnold transform. |
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| Keywords: | image scrambling image encryption bit planes random shuffling |
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