在空间域获得同态滤波模板的新方法

New Method of Acquiring Homomorphic Filtering Mask in Spatial Domain

同态滤波是一种将图像亮度范围压缩和对比度增强的频域处理方法。同态滤波能够消除不均匀照度的影响而又不损失图像细节。本文简要介绍了同态滤波的原理,提出了一种在空间域获得同态滤波模板的方法,并且基于Matlab在空间域实现了图像的同态滤波增强。

Homomorphic Filtering is a frequency domain operation to compress image light area and enhance contrast. It can remove the effect of asymmetry and does not lose the image detail at the same time. The essay introduces thes principles of homomorphic filtering in briefly, and mentions a new method to get the mask of homomorphic filtering in the spatial domain, fulfill homomorphic filtering in the spatial domain base on Matlab.