【圖像去噪】基于matlab GUI均值+中值濾波圖像去噪【含Matlab源碼 342期】

一、簡介

基于matlab GUI均值+中值濾波圖像去噪

二、源代碼

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

% Last Modified by GUIDE v2.5 20-Mar-2021 09:33:03

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled_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 untitled is made visible.
function untitled_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 untitled (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = untitled_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 button press in open.

function open_Callback(hObject, eventdata, handles)
%選擇圖檔，可以是以下格式（*這個符号是通配符，表示可以是任意長度的任意字元）
    [filename,pathname]=uigetfile({'*.*';'*.bmp';'*.jpg';'*.tif';'*.jpeg'},'選擇圖像');
    %将im定義成全局變量，這樣在代碼的任何位置都可以使用im了。
    global im;
    %如果沒有輸入路徑，則彈出錯誤對話框 
    if isequal(filename,0)||isequal(pathname,0)
      errordlg('您還沒有選取圖檔！！','程式員哥哥告訴你');
      return;
    else
        %合成路徑+檔案名
        image=[pathname,filename];
        %讀取圖像
        im=imread(image);
        gray = rgb2gray(im);
        %打開坐标，友善操作
        set(handles.before,'HandleVisibility','ON');
        %使用圖像，操作在坐标before裡
        axes(handles.before);
        %在坐标圖before裡顯示原圖像 
        imshow(gray);
        
    end

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


% --- Executes on button press in mean.%均值除噪
function mean_Callback(hObject, eventdata, handles)
        global Xnoised;
        global X;
        g1 = imfilter(Xnoised, fspecial('average'));%均值濾波
        P = psnr(X,g1);
        set(handles.final,'HandleVisibility','ON');
        %使用圖像，操作在坐标before裡
        axes(handles.final);
        %在坐标圖before裡顯示原圖像 
        %imshow(im);
        imshow(g1);
        title(['均值濾波 PSNR = ',num2str(P)]);
% hObject    handle to mean (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)



function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double


% --- Executes during object creation, after setting all properties. 接受噪聲系數
function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



% --- Executes during object creation, after setting all properties.
function noise_CreateFcn(hObject, eventdata, handles)
% hObject    handle to noise (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、運作結果

四、備注

版本：2014a