| 数字图像的分数阶微分增强 |
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| 引用本文： | 何远德.数字图像的分数阶微分增强[J].乐山师范学院学报,2013(12):46-50. |
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| 作者姓名： | 何远德 |
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| 作者单位： | 西南民族大学外国语学院语言类实验室,成都610065 |
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| 摘 要： | 为了提高图像的纹理细节，提出了一种分数阶对比度增强算法。首先离散化分数阶微分方程得到分数阶微分数值计算方法，并将其推广到二维图像空间，构造了数字图像的分数阶微分增强运算规则和增强模板。实验表明该分数阶微分增强算法能比较明显地增强图像的纹理细节，增强后的图像清晰度显著提高。
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| 关 键 词： | 图像增强 分数阶微分 分数阶偏微分 |
A Digital Image Enhancement Algorithm Based on Fractional Difference |
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| HE Yuande.A Digital Image Enhancement Algorithm Based on Fractional Difference[J].Journal of Leshan Teachers College,2013(12):46-50. |
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| Authors: | HE Yuande |
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| Institution: | HE Yuande (Language Laboratory, School of Foreign Languages, Southwest University for Nationalitities, Chengdu Sichuan 610065, China) |
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| Abstract: | In order to improve equality of texture, a fractional differential image enhancement algorithm is proposed in this paper. First, discrete expression of fractional differential equations is deduced, and then is extended to two-dimensional image space; furthermore, the rules and mask of fractional differential image enhancement are constructed. The experiments shows that the fractional differential enhancement algorithm can obviously enhance the texture details of the image; and the clarity of enhanced image is significantly improved. |
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| Keywords: | Image Enhancement Fractional Difference Fractional Partial Differential |
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