| 基于模糊逻辑的指纹图像对比度增强算法 |
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| 引用本文： | 苏菲,冯建江,孙景鳌,蔡安妮.基于模糊逻辑的指纹图像对比度增强算法[J].计算机工程,2003,29(3):122-123,160. |
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| 作者姓名： | 苏菲 冯建江 孙景鳌 蔡安妮 |
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| 作者单位： | 北京邮电大学电信工程学院,北京,100876 |
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| 摘 要： | 提出了一种新的基于模糊逻辑的方向纹理对比度增强的方法,对指纹图像进行增强.通过模糊边线判别器在对任一像素点属于边缘的程度进行模糊软判决的同时完成边缘检测,根据计算出的指纹方向图,结合模糊的边缘判新局面器的输出结果，来指导基于方向纹理的指纹图像的对比度增强.实验结果表明这种方法对于质量比较差的指纹图像能明显改善其质量,对于图像的边缘区域，则能够在保持边缘细节的同时滤除噪声。
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| 关 键 词： | 指纹图像 对比度增强算法 模糊逻辑 图像增强 图像处理 计算机 方向纹理 |
| 文章编号： | 1000-3428(2003)03-0122-02 |
An Approach to Contrast Enhancement of Fingerprint Image Based on Fuzzy Logic |
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| SU Fei,FENG Jianjiang,SUN Jingao,CAI Anni.An Approach to Contrast Enhancement of Fingerprint Image Based on Fuzzy Logic[J].Computer Engineering,2003,29(3):122-123,160. |
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| Authors: | SU Fei FENG Jianjiang SUN Jingao CAI Anni |
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| Abstract: | A fuzzy based algorithm for contrast enhancement of fingerprint ima ge and edge detection is presented. In this method a fuzzy edge detector is fir s t applied to make soft decision on degree of belonging to edge for each pixel. A ccording to these decisions and fingerprint orientation image, image contrast is enhanced without significant noise enhancement. Experimental results demons trat e that this method is effective in performing detail sharpening and removin g noi se without destroying the useful information contained in a fingerprint im age. |
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