www.gusucode.com > 图像去噪的matlab的GUI界面程序实例 > code3/jiemian.m

    function varargout = jiemian(varargin)
% JIEMIAN Application M-file for jiemian.fig
%    FIG = JIEMIAN launch jiemian GUI.
%    JIEMIAN('callback_name', ...) invoke the named callback.

% Last Modified by GUIDE v2.5 04-Jun-2005 18:40:40

if nargin == 0  % LAUNCH GUI

	fig = openfig(mfilename,'reuse');

	% Use system color scheme for figure:
	set(fig,'Color',get(0,'defaultUicontrolBackgroundColor'));

	% Generate a structure of handles to pass to callbacks, and store it. 
	handles = guihandles(fig);
	guidata(fig, handles);

	if nargout > 0
		varargout{1} = fig;
	end

elseif ischar(varargin{1}) % INVOKE NAMED SUBFUNCTION OR CALLBACK

	try
		if (nargout)
			[varargout{1:nargout}] = feval(varargin{:}); % FEVAL switchyard
		else
			feval(varargin{:}); % FEVAL switchyard
		end
	catch
		disp(lasterr);
	end

end


%| ABOUT CALLBACKS:
%| GUIDE automatically appends subfunction prototypes to this file, and 
%| sets objects' callback properties to call them through the FEVAL 
%| switchyard above. This comment describes that mechanism.
%|
%| Each callback subfunction declaration has the following form:
%| <SUBFUNCTION_NAME>(H, EVENTDATA, HANDLES, VARARGIN)
%|
%| The subfunction name is composed using the object's Tag and the 
%| callback type separated by '_', e.g. 'slider2_Callback',
%| 'figure1_CloseRequestFcn', 'axis1_ButtondownFcn'.
%|
%| H is the callback object's handle (obtained using GCBO).
%|
%| EVENTDATA is empty, but reserved for future use.
%|
%| HANDLES is a structure containing handles of components in GUI using
%| tags as fieldnames, e.g. handles.figure1, handles.slider2. This
%| structure is created at GUI startup using GUIHANDLES and stored in
%| the figure's application data using GUIDATA. A copy of the structure
%| is passed to each callback.  You can store additional information in
%| this structure at GUI startup, and you can change the structure
%| during callbacks.  Call guidata(h, handles) after changing your
%| copy to replace the stored original so that subsequent callbacks see
%| the updates. Type "help guihandles" and "help guidata" for more
%| information.
%|
%| VARARGIN contains any extra arguments you have passed to the
%| callback. Specify the extra arguments by editing the callback
%| property in the inspector. By default, GUIDE sets the property to:
%| <MFILENAME>('<SUBFUNCTION_NAME>', gcbo, [], guidata(gcbo))
%| Add any extra arguments after the last argument, before the final
%| closing parenthesis.



% --------------------------------------------------------------------
function varargout = LoadPush_Callback(h, eventdata, handles, varargin)%回调函数


global im_original im_noised im_filtered%global:定义全局变量
[filename, pathname] = uigetfile('*.bmp;*.pgm;*.tif;*.jpg;*.*', 'Load input image');%读取文件
if isequal(filename,0) | isequal(pathname,0)
       disp('User pressed cancel')%disp：显示
    else
       disp(['User selected ', fullfile(pathname, filename)])
    end
im_original=imread(filename);
set(handles.Or_image,'HandleVisibility','OFF');%handles:句柄
set(handles.Out_image,'HandleVisibility','OFF');
%set(handles.Denoised_image,'HandleVisibility','OFF');
set(handles.Or_image,'HandleVisibility','ON');
axes(handles.Or_image);
imshow(im_original);
colormap(gray(256));
axis equal;%让图像的大小与框架吻合
axis tight;%同上
axis off;%把数轴关掉
set(handles.Or_image,'HandleVisibility','OFF');
set(handles.Or_image,'XTickLabel',' ','YTickLabel',' ');


% --------------------------------------------------------------------
function varargout = popupmenu1_Callback(h, eventdata, handles, varargin)




% --------------------------------------------------------------------
function varargout = popupmenu3_Callback(h, eventdata, handles, varargin)




% --------------------------------------------------------------------
function varargout = ApplyPush_Callback(h, eventdata, handles, varargin)


global im_original im_noised im_filtered
imnoise_type = get(handles.popupmenu1,'Value'); % selected noise type
switch imnoise_type
     case { 1 } %加入噪声
        im_noised = gaussian_bai(im_original); %加入高斯白噪声
     case { 2 }
        im_noised = salt(uint8(im_original)); %加入椒盐噪声
     case  { 3 }
        im_noised = speckle(uint8(im_original)); %加入乘性噪声
end


method_number = get(handles.popupmenu3,'Value'); % selected filter method
switch method_number
    case { 1 }
         im_filtered = meanfilter(im_noised);
    case { 2 }
         im_filtered = medfilter(im_noised);
    case { 3 }
         im_filtered = wienerfilter(im_noised);
    case { 4 }
         im_filtered = Leefilter(im_noised);
    case { 5 }
         im_filtered = Mapfilter(im_noised);
    case { 6 }
         im_filtered = Wavelethardthreshold(im_noised);
    case { 7 }
         im_filtered = Waveletsoftthreshold(im_noised);
end   
 

set(handles.noised_image,'HandleVisibility','ON');
axes(handles.noised_image);
imagesc(im_noised); 
colormap(gray(256));
axis equal;
axis tight;
axis off;
set(handles.noised_image,'HandleVisibility','OFF')
set(handles.Out_image,'HandleVisibility','ON');
axes(handles.Out_image);
imagesc(im_filtered); 
colormap(gray(256));
axis equal;
axis tight;
axis off;
set(handles.Out_image,'HandleVisibility','OFF')



% --------------------------------------------------------------------
function varargout = QuitPush_Callback(h, eventdata, handles, varargin)

clear all   % to close GUI
close(gcbf)




% 加噪函数
function newim = gaussian_bai(img)
    newim = imnoise(img,'gaussian');

function newim = salt(img)
    newim = imnoise(img,'salt & pepper',0.02);
  
function  newim = speckle(img)
    newim = imnoise(img,'speckle');
    
 % 去噪函数
 
function out = meanfilter(im)
   out = filter2(fspecial('average',3),im); %执行二维的均值滤波
    
function out = medfilter(im)
    out = medfilt2(im);  %执行二维的中值滤波
  
function out = wienerfilter(im)
     
%     im = imnoise(I,'gaussian',0,0.005); 
    out = wiener2(im,[5 5]); %执行二维的维纳滤波

function imout = Leefilter(x)

imout=im;
imout = double(imout);

function imout = Mapfilter(x)
imout=im;
function  imout = Wavelethardthreshold(x)
imout=im;

function out =Waveletsoftthreshold(im) %执行小波去噪 
imout=im;


% --------------------------------------------------------------------
function varargout = Untitled_1_Callback(h, eventdata, handles, varargin)




% --------------------------------------------------------------------
function varargout = Untitled_2_Callback(h, eventdata, handles, varargin)


% --- Executes on button press in Savepushbutton7.
function Savepushbutton7_Callback(hObject, eventdata, handles)
% hObject    handle to Savepushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global im_original im_noised im_filtered
[filename, pathname] = uiputfile( '*.bmp;*.pgm;*.tif;*.jpg;*.*', 'Save imagecrop image');
imwrite(im_filtered,filename);

% --- Executes on button press in Saveushbutton7.
function Saveushbutton7_Callback(hObject, eventdata, handles)
% hObject    handle to Saveushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

global im_original im_noised im_filtered
[filename, pathname] = uiputfile( '*.bmp;*.pgm;*.tif;*.jpg;*.*', 'Save imagecrop image');
imwrite(im_filtered,filename);