摘要
文中对同态滤波基本原理进行阐述,在此基础上对目前广泛应用于图像对比度增强和照度补偿的巴特沃斯高通滤波器进行改进,提出一种改进的巴特沃斯带阻滤波器,应用于Matlab平台上对灰度图像进行处理,实验结果表明:经过处理的图像在保持原始面貌的前提下,局部对比度大大增强,达到预期结果。
This article expounded the basic principle of homomorphic filtering, based on this, improved Butterworth high-pass filter which is widely used in image contrast enhancement and luminance compensation, proposed an improved Butterworth band-stop filter, which is applied in process of gradation image in Matlab platform. The experimental results show that the processed image on the premise of maintaining the original appearance, local contrast is greatly enhanced to achieve the expected results.
出处
《通信电源技术》
2013年第1期71-72,共2页
Telecom Power Technology
关键词
同态滤波
照度补偿
对比度
homomorphic filtering
luminance compensation
contrast
