摘要
针对图像增强的问题,提出了一种改进的频域非线性外推方法。该方法通过用高频加强滤波代替原算法的高通滤波,使增强效果得到了显著提高。实验表明,改进后的方法能有效地提升图像的高频成分,并能使增强后的图像具有更好的视觉效果。
For the problem of image enhancement, an improved nonlinear extrapolation method in frequency space is proposed. By using the high frequency emphasis filtering instead of the high pass filtering, the image enhancement effectiveness is obviously improved. The experiment results have shown that the improved method can effectively strengthen the high frequency component in an image and the enhanced image has a better visual quality.
出处
《红外》
CAS
2006年第9期6-8,共3页
Infrared
基金
教育部留学回国人员科研启动基金(教外司[2004]527号)
四川省科技攻关项目(04GG021-020-5)
关键词
图像处理
图像增强
非线性外推
高频加强滤波
image processing
image enhancement
nonlinear extrapolation
high frequency emphasis filtering
