matlab-(含教程)基于高斯滤波的低质量文字类型图片修复算法matlab仿真

clc; clear; close all; warning off; addpath(genpath(pwd)); img=imread('4.tif'); figure();subplot(1,2,1);imshow(img);title('Orginal image'); ff_img=fftshift(fft2(img)); [m,n]=size(img); d=150; filter=gaussianLPF(m,n,d); result=ff_img.*filter; subplot(1,2,2);imshow(ifft2(ifftshift(result)),[0 255]);title('Text Repaire with GaussianLowPassFilter');