【图像修复】基于matlab GUI维纳滤波图像复原【含Matlab源码 851期】
【摘要】
一、获取代码方式
获取代码方式1: 通过订阅紫极神光博客付费专栏,凭支付凭证,私信博主,可获得此代码。
获取代码方式2: 完整代码已上传我的资源:【图像修复】基于matlab GUI维纳滤波图像复原【...
一、获取代码方式
获取代码方式1:
通过订阅紫极神光博客付费专栏,凭支付凭证,私信博主,可获得此代码。
获取代码方式2:
完整代码已上传我的资源:【图像修复】基于matlab GUI维纳滤波图像复原【含Matlab源码 851期】
备注:
订阅紫极神光博客付费专栏,可免费获得1份代码(有效期为订阅日起,三天内有效);
二、简介
维纳滤波的基本思路与传统的滤波器相似,不过在输入输出上有所不同,维纳滤波的输入为带噪语音信号,其输出为纯净语音信号的估计值。维纳滤波的数学表达如式所示。
2 DD算法:当前帧的先验信噪比的估计:
3 优化
三、部分源代码
function varargout = wiener_filter(varargin)
% WIENER_FILTER M-file for wiener_filter.fig
% WIENER_FILTER, by itself, creates a new WIENER_FILTER or raises the existing
% singleton*.
%
% H = WIENER_FILTER returns the handle to a new WIENER_FILTER or the handle to
% the existing singleton*.
%
% WIENER_FILTER('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in WIENER_FILTER.M with the given input arguments.
%
% WIENER_FILTER('Property','Value',...) creates a new WIENER_FILTER or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before wiener_filter_OpeningFunction gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to wiener_filter_OpeningFcn via varargin.
%
% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one
% instance to run (singleton)".
%
% See also: GUIDE, GUIDATA, GUIHANDLES
% Edit the above text to modify the response to help wiener_filter
% Last Modified by GUIDE v2.5 20-May-2009 10:04:40
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @wiener_filter_OpeningFcn, ...
'gui_OutputFcn', @wiener_filter_OutputFcn, ...
'gui_LayoutFcn', [] , ...
'gui_Callback', []);
if nargin & isstr(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end
if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT
% --- Executes just before wiener_filter is made visible.
function wiener_filter_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% varargin command line arguments to wiener_filter (see VARARGIN)
axes(handles.axes1);
img = checkerboard(8);
imshow(img,[]);
PSF = fspecial('motion',10,45);
MF = imfilter(img,PSF,'circular');
axes(handles.axes2);
imshow(MF,[]);
noise = imnoise(zeros(size(img)),'gaussian',0,0.01);
MFN = MF+noise;
axes(handles.axes3);
imshow(MFN,[]);
Sn = abs(fft2(MFN)).^2;
Sf = abs(fft2(img)).^2;
NCORR = fftshift(real(ifft2(Sn)));
ICORR = fftshift(real(ifft2(Sf)));
J = deconvwnr(MFN,PSF,NCORR,ICORR);
axes(handles.axes4);
imshow(J,[]);
set(handles.len_edit,'string',10);
set(handles.theta_edit,'string',45);
set(handles.variance_edit,'string',0.01);
% Choose default command line output for wiener_filter
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes wiener_filter wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = wiener_filter_OutputFcn(hObject, eventdata, handles)
% varargout cell array for returning output args (see VARARGOUT);
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Get default command line output from handles structure
varargout{1} = handles.output;
% --- Executes during object creation, after setting all properties.
function image_pop_menu_CreateFcn(hObject, eventdata, handles)
% hObject handle to image_pop_menu (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: popupmenu controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc
set(hObject,'BackgroundColor','white');
else
set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
% --- Executes on selection change in image_pop_menu.
%function image_pop_menu_Callback(hObject, eventdata, handles)
% hObject handle to image_pop_menu (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
%LEN = str2num(get(handles.len_edit,'string'));
%THETA = str2num(get(handles.theta_edit,'string'));
variance = str2num(get(handles.variance_edit,'string'));
val = get(hObject,'value');
str = get(hObject,'string');
switch str{val}
case 'Lena'
lena = [];
lena = imread('lena.bmp');
img = lena;
case 'Saturn'
saturn = [];
load imdemos saturn
img = saturn;
case 'Quarter'
quarter = [];
load imdemos quarter
img = quarter;
case 'Flower'
flower = [];
load imdemos flower
img = flower;
case 'Circuit'
circuit = [];
load imdemos circuit
img = circuit;
end
axes(handles.axes1);
imshow(img);
PSF = fspecial('motion',LEN,THETA);
MF = imfilter(img,PSF,'circular','conv');
axes(handles.axes2);
imshow(MF);
noise = imnoise(zeros(size(img)),'gaussian',0,variance);
MF1 = double(MF);
MFN = MF1+noise;
axes(handles.axes3);
imshow(uint8(MFN),[]);
Sn = abs(fft2(MFN)).^2;
Sf = abs(fft2(img)).^2;
NCORR = fftshift(real(ifft2(Sn)));
ICORR = fftshift(real(ifft2(Sf)));
J = deconvwnr(MFN,PSF,NCORR,ICORR);
axes(handles.axes4);
imshow(J,[]);
% Hints: contents = get(hObject,'String') returns image_pop_menu contents as cell array
% contents{get(hObject,'Value')} returns selected item from image_pop_menu
% --- Executes during object creation, after setting all properties.
function len_edit_CreateFcn(hObject, eventdata, handles)
% hObject handle to len_edit (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: edit controls usually have a white background on Windows.
% See ISPC and COMPUTER.
if ispc
set(hObject,'BackgroundColor','white');
else
set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end
function len_edit_Callback(hObject, eventdata, handles)
% hObject handle to len_edit (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
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四、运行结果
五、matlab版本及参考文献
1 matlab版本
2014a
2 参考文献
[1] 蔡利梅.MATLAB图像处理——理论、算法与实例分析[M].清华大学出版社,2020.
[2]杨丹,赵海滨,龙哲.MATLAB图像处理实例详解[M].清华大学出版社,2013.
[3]周品.MATLAB图像处理与图形用户界面设计[M].清华大学出版社,2013.
[4]刘成龙.精通MATLAB图像处理[M].清华大学出版社,2015.
[5]陈浩,方勇,朱大洲,王成,陈子龙.基于蚁群算法的玉米植株热红外图像边缘检测[J].农机化研究. 2015,37(06)
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