图像去噪基于matlab GUI中值+均值+维纳+小波滤波图像去噪含Matlab源码 753期

Posted 2021-05-18 紫极神光

一、简介

基于matlab GUI中值+均值+维纳+小波滤波图像去噪

二、源代码

function varargout = dsp1(varargin)
% DSP1 MATLAB code for dsp1.fig
%      DSP1, by itself, creates a new DSP1 or raises the existing
%      singleton*.
%
%      H = DSP1 returns the handle to a new DSP1 or the handle to
%      the existing singleton*.
%
%      DSP1(\'CALLBACK\',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in DSP1.M with the given input arguments.
%
%      DSP1(\'Property\',\'Value\',...) creates a new DSP1 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before dsp1_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to dsp1_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 dsp1

% Last Modified by GUIDE v2.5 21-Mar-2014 21:34:03

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct(\'gui_Name\',       mfilename, ...
                   \'gui_Singleton\',  gui_Singleton, ...
                   \'gui_OpeningFcn\', @dsp1_OpeningFcn, ...
                   \'gui_OutputFcn\',  @dsp1_OutputFcn, ...
                   \'gui_LayoutFcn\',  [] , ...
                   \'gui_Callback\',   []);
if nargin && ischar(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 dsp1 is made visible.
function dsp1_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 dsp1 (see VARARGIN)
setappdata(handles.figure1,\'img1\',0);
setappdata(handles.figure1,\'img2\',0);
setappdata(handles.figure1,\'img3\',0);
%set(handles.myimage_compress,\'Enable\', \'off\');
set(handles.pushbutton_compress,\'Enable\', \'off\');
set(handles.menu_quzaodesc, \'Enable\', \'off\');
set(handles.save, \'Enable\', \'off\');


% Choose default command line output for dsp1
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes dsp1 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = dsp1_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 on selection change in popupmenu.
function popupmenu_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = cellstr(get(hObject,\'String\')) returns popupmenu contents as cell array
%        contents{get(hObject,\'Value\')} returns selected item from popupmenu
val = get(hObject,\'Value\');
str = get(hObject, \'String\');
switch str{val};
case \'无\' % 
	img2=getappdata(handles.figure1,\'img1\');
    axes(handles.axes2);
    imshow(img2);
    setappdata(handles.figure1,\'img2\',img2);
    set(handles.pushbutton_listen, \'Enable\', \'off\');
case \'高斯噪声\' % 
	img2=getappdata(handles.figure1,\'img1\');
    img2 = imnoise(img2,\'gaussian\'); %加高斯噪声
    axes(handles.axes2);
    imshow(img2);
    setappdata(handles.figure1,\'img2\',img2);
    set(handles.menu_quzaodesc, \'Enable\', \'on\');
    set(handles.pushbutton_listen, \'Enable\', \'on\');
case \'椒盐噪声\' % 
	img2=getappdata(handles.figure1,\'img1\');
    img2 = imnoise(img2,\'salt\');
    axes(handles.axes2);
    imshow(img2);
    setappdata(handles.figure1,\'img2\',img2);
    set(handles.menu_quzaodesc, \'Enable\', \'on\');
    set(handles.pushbutton_listen, \'Enable\', \'on\');
case \'泊松噪声\' % 
	img2=getappdata(handles.figure1,\'img1\');
    img2 = imnoise(img2,\'poisson\');
    axes(handles.axes2);
    imshow(img2);
    setappdata(handles.figure1,\'img2\',img2);
    set(handles.menu_quzaodesc, \'Enable\', \'on\');
    set(handles.pushbutton_listen, \'Enable\', \'on\');
case \'斑点噪声speckle\' % 
	img2=getappdata(handles.figure1,\'img1\');
    img2 = imnoise(img2,\'speckle\');
    axes(handles.axes2);
    imshow(img2);
    setappdata(handles.figure1,\'img2\',img2);
    set(handles.menu_quzaodesc, \'Enable\', \'on\');
    set(handles.pushbutton_listen, \'Enable\', \'on\');
end

% --- Executes during object creation, after setting all properties.
function popupmenu_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu (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 && isequal(get(hObject,\'BackgroundColor\'), get(0,\'defaultUicontrolBackgroundColor\'))
    set(hObject,\'BackgroundColor\',\'white\');
end


% --------------------------------------------------------------------
function myfile_Callback(hObject, eventdata, handles)
% hObject    handle to myfile (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)


% --------------------------------------------------------------------
function myfile_open_Callback(hObject, eventdata, handles)
% hObject    handle to myfile_open (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[filename, pathname] = uigetfile(...
    {\'*.bmp;*.jpg; *.png; *.jpeg; \',\'Image Files(*.bmp,*.jpg,*.png,*.jpeg)\';...
    \'*.*\',      \'All Files(*.*)\' }...
    , \'Pick an image\');%打开文件 选择图像
if isequal(filename,0) || isequal(pathname,0)
    return;%如 果点了“ 取 消”
end
axes(handles.axes1);%重要，在哪个坐标轴显示图像
fpath = [pathname filename];%路径名和文件名
img1 = imread(fpath);%读取图像 
imshow(img1);%显示图像
setappdata(handles.figure1,\'img1\',img1);


% --- Executes on selection change in popupmenu3.
function popupmenu3_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: contents = cellstr(get(hObject,\'String\')) returns popupmenu3 contents as cell array
%        contents{get(hObject,\'Value\')} returns selected item from popupmenu3
img2=getappdata(handles.figure1,\'img2\');%加噪图像
img1=getappdata(handles.figure1,\'img1\');%原始图像
val = get(hObject,\'Value\');
str = get(hObject, \'String\');
switch str{val};
case \'中值滤波\'
    set(handles.uipanel_lowfilt, \'Visible\', \'off\');
    set(handles.uipanel_gausslow, \'Visible\', \'off\');
    set(handles.pushbutton_quzao, \'Visible\', \'off\');
	img3 = medfilt2(img2);%中值滤波
    setappdata(handles.figure1,\'img3\',img3);
    axes(handles.axes3);
    imshow(img3);
    PSNR = psnr2(img3, img1);
    str1 = strcat(\'psnr为： \' , num2str(PSNR) , \'db\');
    set(handles.text3, \'string\', str1); %显示PSNR值
    set(handles.save, \'Enable\', \'on\');
   % set(handles.myimage_compress,\'Enable\', \'on\');
    set(handles.pushbutton_compress,\'Enable\', \'on\');
case \'维纳滤波\' 
    set(handles.uipanel_lowfilt, \'Visible\', \'off\');
    set(handles.uipanel_gausslow, \'Visible\', \'off\');
    set(handles.pushbutton_quzao, \'Visible\', \'off\');
	img3 = wiener2(img2,[5,5]);
    setappdata(handles.figure1,\'img3\',img3);
    axes(handles.axes3);
    imshow(img3); 
    PSNR = psnr2(img3, img1);
    str1 = strcat(\'psnr为： \' , num2str(PSNR) , \'db\');
    set(handles.text3, \'string\', str1);
   % set(handles.myimage_compress,\'Enable\', \'on\');
    set(handles.pushbutton_compress,\'Enable\', \'on\');
    set(handles.save, \'Enable\', \'on\');
case \'小波\'
    set(handles.uipanel_lowfilt, \'Visible\', \'off\');
    set(handles.uipanel_gausslow, \'Visible\', \'off\');
    set(handles.pushbutton_quzao, \'Visible\', \'off\');
    [c,s]=wavedec2(img2,2,\'sym4\');%用小波函数sym4对img3进行两层小波分解
    %a1=wrcoef2(\'a\',c,s,\'sym4\',1);%提取小波分解中第一层的低频图像，即实现了低通滤波消噪
    %subplot(2,2,3);imshow(uint8(a1));%画出第一次消噪后的图像
    img3=wrcoef2(\'a\',c,s,\'sym4\',2);%提取小波分解中第二层的低频图像，即实现了低通滤波消噪
    setappdata(handles.figure1,\'img3\',uint8(img3));
    axes(handles.axes3);
    imshow(uint8(img3));%画出第二次消噪后的图像
    PSNR = psnr2(img3, img1);
    str1 = strcat(\'psnr为： \' , num2str(PSNR) , \'db\');
    set(handles.text3, \'string\', str1);
   % set(handles.myimage_compress,\'Enable\', \'on\');
    set(handles.pushbutton_compress,\'Enable\', \'on\');
    set(handles.save, \'Enable\', \'on\');
case \'理想低通滤波\' 
    set(handles.uipanel_gausslow, \'Visible\', \'off\');
    set(handles.uipanel_lowfilt, \'Visible\', \'on\');
    set(handles.pushbutton_quzao, \'Visible\', \'on\')  
case \'高斯低通滤波\' 
    set(handles.uipanel_lowfilt, \'Visible\', \'off\');
    set(handles.uipanel_gausslow, \'Visible\', \'on\' );
    set(handles.pushbutton_quzao, \'Visible\', \'on\');
end   

guidata(hObject,handles)

% --- Executes during object creation, after setting all properties.
function popupmenu3_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu3 (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 && isequal(get(hObject,\'BackgroundColor\'), get(0,\'defaultUicontrolBackgroundColor\'))
    set(hObject,\'BackgroundColor\',\'white\');
end

三、运行结果

四、备注

版本：2014a
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