| 一种新的基于FFT的图像增强算法 |
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| 引用本文： | 穆立胜,李金宗,马冬冬,李冬冬.一种新的基于FFT的图像增强算法[J].黑龙江大学自然科学学报,2010,27(2). |
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| 作者姓名： | 穆立胜 李金宗 马冬冬 李冬冬 |
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| 作者单位： | 哈尔滨工业大学图像信息技术与工程研究所,哈尔滨,150001 |
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| 基金项目： | "十一五"总装重点项目 |
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| 摘 要： | 针对散焦模糊和噪声的频域特点,提出了一种基于FFT的频域图像增强算法。设计了高通倒高斯滤波器与低通反正切滤波器,使得图像去噪的同时又保留了细节。并研究了抑制振铃的算法,去除了频域加窗对图像的影响,对于增强图像的质量有显著的效果。
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| 关 键 词： | 图像增强 高频增强 低通滤波 |
A new image enhancement method based-on FFT |
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| MU Li-sheng,LI Jin-zong,MA Dong-dong,LI Dong-dong.A new image enhancement method based-on FFT[J].Journal of Natural Science of Heilongjiang University,2010,27(2). |
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| Authors: | MU Li-sheng LI Jin-zong MA Dong-dong LI Dong-dong |
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| Abstract: | In addition to considering the character of blur and noise fully, it is presented a new method based - on FFT. An inverse - gauss high pass filter and a low pass filter are designed to enhance image quality, which not only denoise but also reserve the fine information of image. And a ring suppression algorithm is studied to reduce the effect of adding window in frequency. It is proved that the method is effective to enhance image quality. |
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| Keywords: | image enhancement high frequency enhancement low pass filter |
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