www.gusucode.com > IPCV_Eval_Kit_R2019a_0ce6858工具箱matlab程序源码 > IPCV_Eval_Kit_R2019a_0ce6858/code/demo_files/I2_10_2b_phaseImage.m
%% 埵憡夋憸偺惗惉 clear;clc;close all;imtool close all %% 夋憸偺撉崬傒 G = imread('coins.png'); figure;imshow(G); %% 2師尦偺FFT寁嶼丗嵍忋嬿偑僛儘廃攇悢學悢(DC惉暘) F = fft2(G); figure;imshow(log(abs(F)), []);colormap(jet); colorbar; % DC惉暘偑嵍忋嬿 %% fftshift娭悢傪梡偄丄僛儘廃攇悢學悢(DC惉暘)傪嵍忋嬿偐傜丄拞怱傊堏摦 % 戞堦徾尷偲戞嶰徾尷丄戞擇徾尷偲戞巐徾尷傪擖傟懼偊 Fs = fftshift(F); figure;imshow(log(abs(Fs)), []);colormap(jet); colorbar; %% 奺惉暘抣傪怳暆偱惓婯壔 (慡偰偺廃攇悢惉暘偑摨偠怳暆) Fn = F ./ abs(F); %% 媡僼乕儕僄曄姺 Gr = ifft2(Fn); figure; imshow(Gr, []); %% 廔椆 %% % Copyright 2015 The MathWorks, Inc.