| 基于均匀置乱的图像位置置乱衡量方法 |
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| 引用本文： | 张健,任洪娥,陈宇. 基于均匀置乱的图像位置置乱衡量方法[J]. 计算机工程与应用, 2010, 46(11): 22-25. DOI: 10.3778/j.issn.1002-8331.2010.11.007 |
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| 作者姓名： | 张健 任洪娥 陈宇 |
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| 作者单位： | 东北林业大学信息与计算机工程学院,哈尔滨,150040 |
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| 基金项目： | 国家自然科学基金No.30972314;;中央高校基本科研业务费专项资金资助(No.DL09BB16)~~ |
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| 摘 要： | 由于图像置乱分成位置和像素值置乱两类，图像置乱衡量也从这两方面进行分析。目前基于像素值的衡量效果依赖于原始图像，存在局限性；基于位置的衡量随着置乱距离的不同效果也有很大偏差，同样存在局限性。从图像位置置乱的实质出发，提出均匀置乱的概念，从偏离度和均匀度的角度对图像位置置乱效果进行衡量。通过对大量实验结果的分析得出，该衡量算法可以准确地衡量图像置乱程度，与人的视觉评价保持一致，具有可行性和有效性。
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| 关 键 词： | 图像加密 位置置乱 均匀置乱 衡量 |
| 收稿时间： | 2010-01-27 |
| 修稿时间： | 2010-2-28 |
Evaluation algorithm of image position scrambling based on even scrambling |
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| ZHANG Jian,REN Hong-e,CHEN YuInformation , Computer Engineering College,Northeast Forestry University,Harbin ,China. Evaluation algorithm of image position scrambling based on even scrambling[J]. Computer Engineering and Applications, 2010, 46(11): 22-25. DOI: 10.3778/j.issn.1002-8331.2010.11.007 |
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| Authors: | ZHANG Jian REN Hong-e CHEN YuInformation Computer Engineering College Northeast Forestry University Harbin China |
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| Affiliation: | ZHANG Jian,REN Hong-e,CHEN YuInformation , Computer Engineering College,Northeast Forestry University,Harbin 150040,China |
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| Abstract: | Image scrambling is evaluated from position and pixel value according to the kind of image encryption.Currently,the evaluation effect of pixel value depends on the original image which has limitation.The evaluation effect of position maybe bring huge difference according to different distance which has limitation too.From the scrambling essential,the concept of even scrambling is presented.At the same time,an evaluation algorithm of image position scrambling is put forward based on deviation and evenness.Th... |
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| Keywords: | image encryption position scrambling even scrambling evaluation |
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