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Showing error in Matlab GUI interface code
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function varargout = gui(varargin)
% GUI MATLAB code for gui.fig
% GUI, by itself, creates a new GUI or raises the existing
% singleton*.
%
% H = GUI returns the handle to a new GUI or the handle to
% the existing singleton*.
%
% GUI('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in GUI.M with the given input arguments.
%
% GUI('Property','Value',...) creates a new GUI or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before gui_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to gui_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 gui
% Last Modified by GUIDE v2.5 03-May-2021 12:42:10
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @gui_OpeningFcn, ...
'gui_OutputFcn', @gui_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 gui is made visible.
function gui_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 gui (see VARARGIN)
% Choose default command line output for gui
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes gui wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = gui_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 pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
[filename,path]=uigetfile('*.*', 'Select an image');
filename=strcat(path,filename);
I=imresize(imread(filename),[256,256]);
axes(handles.axes2);
imshow(I);
handles.I = I;
guidata(hObject, handles);
% --- Executes on selection change in popupmenu1.
function popupmenu1_Callback(hObject, eventdata, handles)
% hObject handle to popupmenu1 (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 popupmenu1 contents as cell array
% contents{get(hObject,'Value')} returns selected item from popupmenu1
% --- Executes during object creation, after setting all properties.
function popupmenu1_CreateFcn(hObject, eventdata, handles)
% hObject handle to popupmenu1 (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
% --- If Enable == 'on', executes on mouse press in 5 pixel border.
% --- Otherwise, executes on mouse press in 5 pixel border or over popupmenu1.
function popupmenu1_ButtonDownFcn(hObject, eventdata, handles)
% hObject handle to popupmenu1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% --- 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
% --- 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
% --- Executes on button press in rgbtogray.
function rgbtogray_Callback(hObject, eventdata, handles)
% hObject handle to rgbtogray (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
f=handles.I;
f= rgb2gray(f);
axes(handles.axes3);
imshow(f);
handles.f = f;
guidata(hObject, handles);
% --- Executes on selection change in Types_of_noise.
function Types_of_noise_Callback(hObject, eventdata, handles)
% hObject handle to Types_of_noise (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 Types_of_noise contents as cell array
% contents{get(hObject,'Value')} returns selected item from Types_of_noise
h=handles.f;
contents = cellstr(get(hObject,'String'));
e=contents{get(hObject,'Value')};
if(strcmp(e,'salt and pepper noise'))
J = imnoise(h,'salt & pepper', 0.2);
axes(handles.axes4);
imshow(J);
elseif (strcmp(e,'Gaussian noise'))
J=imnoise(h,'gaussian',0,0.0125);
axes(handles.axes4);
imshow(J);
elseif (strcmp(e,'Poisson noise'))
J = imnoise(h,'poisson');
axes(handles.axes4);
imshow(J);
else
J = imnoise(h,'speckle');
axes(handles.axes4);
imshow(J);
end
handles.J = J;
guidata(hObject, handles);
% --- Executes during object creation, after setting all properties.
function Types_of_noise_CreateFcn(hObject, eventdata, handles)
% hObject handle to Types_of_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
% --- Executes on selection change in Denoising_filters.
function Denoising_filters_Callback(hObject, eventdata, handles)
% hObject handle to Denoising_filters (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 Denoising_filters contents as cell array
% contents{get(hObject,'Value')} returns selected item from Denoising_filters
c=handles.I;
u=handles.J;
contents = cellstr(get(hObject,'String'));
p=contents{get(hObject,'Value')};
if(strcmp(p,'Wiener filter'))
u=uint8(u);
[K,NOISE]=wiener2(u,[5,5]);
K=wiener2(u,[5 5]);
K=uint8(K);
axes(handles.axes5);
imshow(K);
handles.K = K;
guidata(hObject, handles);
elseif(strcmp(p,'Gaussian filter'))
u=uint8(u);
sigma=0.5;
kernel=zeros(5,5);
W=0;
for i=1:5
for j=1:5
dis=(i-3)^2+(j-3)^2;
kernel(i,j)=exp(-1*dis/2*sigma*sigma);
W=W+kernel(i,j);
end
end
kernel=kernel/W;
[m,n]=size(u);
output=zeros(m,n);
t=padarray(u,[2,2]);
for i=1:m
for j=1:n
temp=t(i:i+4,j:j+4);
temp=double(temp);
conv=temp.*kernel;
output(i,j)=sum(conv(:));
end
end
output=uint8(output);
axes(handles.axes5);
imshow(output);
handles.output = output;
guidata(hObject, handles);
elseif(strcmp(p,'Vector median filter'))
a1=c(:,:,1);
b1=u(:,:,1);
b1=double(b1);
a2=c(:,:,2);
b2=u(:,:,2);
b2=double(b2);
a3=c(:,:,3);
b3=u(:,:,3);
b3=double(b3);
a1=double(a1);
a2=double(a2);
a3=double(a3);
z1=zeros(256,256);
z2=zeros(256,256);
z3=zeros(256,256);
for i=2:255
for j=2:255
s1=reshape(b1(i-1:i+1,j-1:j+1),1,9);
s2=reshape(b2(i-1:i+1,j-1:j+1),1,9);
s3=reshape(b3(i-1:i+1,j-1:j+1),1,9);
for z=1:9
su=0;
for r=1:9
if (z~=1)
su=su+sqrt((s1(z)-s1(r)).^2+(s2(z)-s2(r)).^2+(s3(z)-s3(r)).^2);
end
end
m(z)=su;
end
q=min(m(:));
p=find(m(:)==q);
p1=s1(p(1));
p2=s2(p(1));
p3=s3(p(1));
z1(i,j)=p1;
z2(i,j)=p2;
z3(i,j)=p3;
end
end
z1=uint8(z1);
z2=uint8(z2);
z3=uint8(z3);
Y0=cat(3,z1,z2,z3);
Y0=uint8(Y0);
axes(handles.axes5);
imshow(Y0);
handles.Y0 = Y0;
guidata(hObject, handles);
else
u=uint8(u);
avg = fspecial('average');
avg1=filter2(avg,u);
axes(handles.axes5);
avg1=uint8(avg1);
imshow(avg1);
handles.avg1 = avg1;
guidata(hObject, handles);
end
% --- Executes during object creation, after setting all properties.
function Denoising_filters_CreateFcn(hObject, eventdata, handles)
% hObject handle to Denoising_filters (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 sigma_value_Callback(hObject, eventdata, handles)
% hObject handle to sigma_value (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 sigma_value as text
% str2double(get(hObject,'String')) returns contents of sigma_value as a double
% --- Executes during object creation, after setting all properties.
function sigma_value_CreateFcn(hObject, eventdata, handles)
% hObject handle to sigma_value (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 on button press in Mean_square_error.
function Mean_square_error_Callback(hObject, eventdata, handles)
% hObject handle to Mean_square_error (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 Peak_signal_to_noise_ratio.
function Peak_signal_to_noise_ratio_Callback(hObject, eventdata, handles)
% hObject handle to Peak_signal_to_noise_ratio (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
function edit5_Callback(hObject, eventdata, handles)
% hObject handle to edit5 (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 edit5 as text
% str2double(get(hObject,'String')) returns contents of edit5 as a double
% --- Executes during object creation, after setting all properties.
function edit5_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit5 (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
function edit8_Callback(hObject, eventdata, handles)
% hObject handle to edit8 (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 edit8 as text
% str2double(get(hObject,'String')) returns contents of edit8 as a double
% --- Executes during object creation, after setting all properties.
function edit8_CreateFcn(hObject, eventdata, handles)
% hObject handle to edit8 (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 on selection change in MSE.
function MSE_Callback(hObject, eventdata, handles)
% hObject handle to MSE (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 MSE contents as cell array
% contents{get(hObject,'Value')} returns selected item from MSE
f=handles.f;
contents = cellstr(get(hObject,'String'));
p1=contents{get(hObject,'Value')};
if(strcmp(p1,'wiener filter'))
K=handles.K;
v1=0;
for i=1:256
for j=1:256
v1=v1+mean(K(i,j)-f(i,j))^.2;
end
end
MSE=v1/(256*256);
set(handles.edit5,'string',MSE);
PSNR=10*log10(255^2*254^2/v1);
set(handles.edit8,'string',PSNR);
elseif (strcmp(p1,'gaussian filter'))
output=handles.output;
v2=0;
for i=1:256
for j=1:256
v2=v2+mean(output(i,j)-f(i,j))^.2;
end
end
MSE=v2/(256*256);
set(handles.edit5,'string',MSE);
PSNR=10*log10(255^2*254^2/v2);
set(handles.edit8,'string',PSNR);
elseif (strcmp(p1,'vector median filter'))
Y0=handles.Y0;
v3=0;
for i=1:256
for j=1:256
v3=v3+mean(Y0(i,j)-f(i,j))^.2;
end
end
MSE=v3/(256*256);
set(handles.edit5,'string',MSE);
PSNR=10*log10(255^2*254^2/v3);
set(handles.edit8,'string',PSNR);
else
avg1=handles.avg1;
v4=0;
for i=1:256
for j=1:256
v4=v4+mean(avg1(i,j)-f(i,j))^.2;
end
end
MSE=v4/(256*256);
set(handles.edit5,'string',MSE);
PSNR=10*log10(255^2*254^2/v4);
set(handles.edit8,'string',PSNR);
end
% --- Executes during object creation, after setting all properties.
function MSE_CreateFcn(hObject, eventdata, handles)
% hObject handle to MSE (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
% --- Executes on selection change in PSNR.
function PSNR_Callback(hObject, eventdata, handles)
% hObject handle to PSNR (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 PSNR contents as cell array
% contents{get(hObject,'Value')} returns selected item from PSNR
% --- Executes during object creation, after setting all properties.
function PSNR_CreateFcn(hObject, eventdata, handles)
% hObject handle to PSNR (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
This is a code for image denoising techniques,I am faced few errors in it .Attaching the error below ,Please help
Reference to non-existent field 'avg1'.
Error in gui>MSE_Callback (line 466)
avg1=handles.avg1;
Error in gui_mainfcn (line 95)
feval(varargin{:});
Error in gui (line 42)
gui_mainfcn(gui_State, varargin{:});
Error in @(hObject,eventdata)gui('MSE_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating uicontrol Callback
2 个评论
Adam Danz
2021-5-3
The error message states that this line is causing the problem
avg1=handles.avg1;
and the problem is that av1 does not exist.
回答（0 个）
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