| 数字图像灰度置乱均匀度算法研究 |
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| 引用本文： | 刘嵩.数字图像灰度置乱均匀度算法研究[J].科学技术与工程,2011,11(17). |
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| 作者姓名： | 刘嵩 |
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| 作者单位： | 暨南大学信息科学技术学院,广州,510632 |
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| 摘 要： | 数字图像的灰度置乱能够改变原图像的直方图分布，在图像加密中扮演着比较重要的角色。灰度置乱效果的研究在信息隐藏领域中有重要意义。本文分析了现有的基于直方图相似度的评价算法，找出了其存在的不足，提出了合理的灰度置乱均匀的评价依据，并根据此依据进一步提出了新的灰度置乱均匀度的评价算法。
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| 关 键 词： | 灰度置乱均匀度 直方图分布 算法 |
| 收稿时间： | 3/4/2011 7:33:45 PM |
| 修稿时间： | 3/4/2011 7:33:45 PM |
Research on Evenness Degree of Digital Image Gray Scrambling Algorithm |
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| liusong.Research on Evenness Degree of Digital Image Gray Scrambling Algorithm[J].Science Technology and Engineering,2011,11(17). |
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| Authors: | liusong |
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| Institution: | LIU Song (College of Information Science and Technology,Ji'nan University,Guangzhou 510632,P.R.China) |
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| Abstract: | Digital image scrambling can change histogram distribution of original image, it plays an important role in the image encryption. Research of grayscale scrambling effect in the field of information hiding has important significance. This paper analyzes the existing evaluation algorithm based on histogram similarity degree, finds out the deficiency, proposes reasonable grayscale scrambling basis for evaluation, and further proposes further new evaluation algorithm of grayscale scrambling evenness. |
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| Keywords: | Evenness of grayscale scrambling Histogram distribution Algorithm |
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