A Method Based on Frequency Domain and Spatial Domain Combination of Image Enhancement Method
Tianyu Zhao · Journal of Yangtze University · 2013
Image enhancement is a preprocessing of digital image,and can effectively improve the overall image or local features.This article discusses the basic principle of histogram equalization,Laplace transform and Gaussian low-pass filter denoising noise image using frequency domain denoising enhanced spatial domain histogram equalization and sharpening methods and the use of some objective indicators to illustrate the effectiveness of this kind of image enhancement method.The experimental results show that this method can make the image clearer,more sharpening.