Design Basic GUI Graphical user Interface in MATLAB and Image Processing

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Prerequisite:
Counting Diamonds in Card
Learn Image Processing with MATLAB:

Demo2.m file is below one:
function varargout = Demo2(varargin)
% DEMO2, by itself, creates a new DEMO2 or raises the existing
% singleton*.
%
% H = DEMO2 returns the handle to a new DEMO2 or the handle to
% the existing singleton*.
%
% DEMO2('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in DEMO2.M with the given input arguments.
%
% DEMO2('Property','Value',...) creates a new DEMO2 or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before Demo2_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to Demo2_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 Demo2

% Last Modified by GUIDE v2.5 06-Sep-2020 17:56:17

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @Demo2_OpeningFcn, ...
'gui_OutputFcn', @Demo2_OutputFcn, ...
'gui_LayoutFcn', [] , ...
'gui_Callback', []);
if nargin && ischar(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 Demo2 is made visible.
function Demo2_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 Demo2 (see VARARGIN)

% Choose default command line output for Demo2

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes Demo2 wait for user response (see UIRESUME)

% --- Outputs from this function are returned to the command line.
function varargout = Demo2_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

% --- Executes on button press in Browse.
function Browse_Callback(hObject, eventdata, handles)
% hObject handle to Browse (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('*.*', 'Pick a MATLAB code file');
if isequal(filename,0) || isequal(pathname,0)
disp('User pressed cancel')
else
filename=strcat(pathname,filename);
ab=imread(filename);
imshow(ab);
k=rgb2gray(ab);
x=~imbinarize(k);
se=strel('diamond',30);
x=imopen(x,se);
[a b]=bwlabel(x);
value=num2str(b);
set(handles.Card_Number,'String',value);
end

function Card_Number_Callback(hObject, eventdata, handles)
% hObject handle to Card_Number (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 Card_Number as text
% str2double(get(hObject,'String')) returns contents of Card_Number as a double

% --- Executes during object creation, after setting all properties.
function Card_Number_CreateFcn(hObject, eventdata, handles)
% hObject handle to Card_Number (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

#DigitalImageProcessing #MATLAB #ComputerVision