Morphological Operation – GUI Matlab


Operasi morfologi merupakan suatu proses yang bertujuan untuk mengubah bentuk dari objek pada citra digital. Pada umumnya operasi morfologi diaplikasikan untuk menyempurnakan bentuk objek pada citra hasil segmentasi. Operasi morfologi dapat juga digunakan untuk mereduksi atau menghilangkan derau pada citra hasil segmentasi. Dalam operasi ini diperlukan sebuah structuring element (strel) yang digunakan sebagai operator untuk membentuk objek dalam citra.

Berikut ini merupakan contoh pemrograman GUI Matlab mengenai operasi morfologi pada citra grayscale dan citra biner.

Tampilan GUI Matlab untuk operasi morfologi citra digital adalah sebagai berikut:
1. Membaca dan menampilkan citra asli
1

2. Operasi erosi dengan structure element ‘line’ dan R = 307

3. Operasi erosi dengan structure element ‘disk’ dan R = 10 2

4. Operasi dilasi dengan structure element ‘diamond’ dan R = 103

5. Operasi dilasi dengan structure element ‘square’ dan R = 30 4

6. Operasi opening dengan structure element ‘diamond’ dan R = 205

7. Operasi closing dengan structure element ‘line’ dan R = 30 6

Source code dan citra untuk proses operasi morfologi dapat diunduh pada laman berikut ini: Source Code

Sedangkan tampilan source codenya adalah:

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

% Last Modified by GUIDE v2.5 11-Aug-2015 12:56:06

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

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

% Update handles structure
guidata(hObject, handles);
movegui(hObject,'center');
clc;clear;

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


% --- Outputs from this function are returned to the command line.
function varargout = Morphological_Operation_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 radiobutton1.
function radiobutton1_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton1
set(handles.radiobutton1,'Value',1)
set(handles.radiobutton2,'Value',0)
set(handles.radiobutton3,'Value',0)
set(handles.radiobutton4,'Value',0)


% --- Executes on button press in radiobutton2.
function radiobutton2_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton2
set(handles.radiobutton1,'Value',0)
set(handles.radiobutton2,'Value',1)
set(handles.radiobutton3,'Value',0)
set(handles.radiobutton4,'Value',0)

% --- Executes on button press in radiobutton3.
function radiobutton3_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton3
set(handles.radiobutton1,'Value',0)
set(handles.radiobutton2,'Value',0)
set(handles.radiobutton3,'Value',1)
set(handles.radiobutton4,'Value',0)

% --- Executes on button press in radiobutton4.
function radiobutton4_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton4
set(handles.radiobutton1,'Value',0)
set(handles.radiobutton2,'Value',0)
set(handles.radiobutton3,'Value',0)
set(handles.radiobutton4,'Value',1)

% --- Executes on button press in radiobutton5.
function radiobutton5_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton5 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton5
set(handles.radiobutton5,'Value',1)
set(handles.radiobutton6,'Value',0)
set(handles.radiobutton7,'Value',0)
set(handles.radiobutton8,'Value',0)

% --- Executes on button press in radiobutton6.
function radiobutton6_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton6 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton6
set(handles.radiobutton5,'Value',0)
set(handles.radiobutton6,'Value',1)
set(handles.radiobutton7,'Value',0)
set(handles.radiobutton8,'Value',0)

% --- Executes on button press in radiobutton7.
function radiobutton7_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton7 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton7
set(handles.radiobutton5,'Value',0)
set(handles.radiobutton6,'Value',0)
set(handles.radiobutton7,'Value',1)
set(handles.radiobutton8,'Value',0)

% --- Executes on button press in radiobutton8.
function radiobutton8_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton8 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

% Hint: get(hObject,'Value') returns toggle state of radiobutton8
set(handles.radiobutton5,'Value',0)
set(handles.radiobutton6,'Value',0)
set(handles.radiobutton7,'Value',0)
set(handles.radiobutton8,'Value',1)

% --- 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,pathname] = uigetfile({'*.*'});

if ~isequal(filename,0)
    Info = imfinfo(fullfile(pathname,filename));
    if Info.BitDepth == 1
        msgbox('Citra masukan harus citra RGB atau Grayscale');
        return
    elseif Info.BitDepth == 8
        Img_Gray = imread(fullfile(pathname,filename));
        axes(handles.axes1)
        cla('reset')
        imshow(Img_Gray)
        title('Grayscale Image')
        Img_bw = im2bw(Img_Gray,graythresh(Img_Gray));
        axes(handles.axes2)
        cla('reset')
        imshow(Img_bw)
        title('Binary Image')
    else
        Img_Gray = rgb2gray(imread(fullfile(pathname,filename)));
        axes(handles.axes1)
        cla('reset')
        imshow(Img_Gray)
        title('Grayscale Image')
        Img_bw = im2bw(Img_Gray,graythresh(Img_Gray));
        axes(handles.axes2)
        cla('reset')
        imshow(Img_bw)
        title('Binary Image')
    end
else
    return
end

handles.Img_Gray = Img_Gray;
handles.Img_Gray2 = Img_Gray;
handles.Img_bw = Img_bw;
handles.Img_bw2 = Img_bw;
guidata(hObject,handles);

set(handles.pushbutton2,'Enable','on')
set(handles.pushbutton3,'Enable','on')

% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
Img_Gray = handles.Img_Gray;
Img_bw = handles.Img_bw;

% Operations
val1 = get(handles.radiobutton1,'Value');
val2 = get(handles.radiobutton2,'Value');
val3 = get(handles.radiobutton3,'Value');
val4 = get(handles.radiobutton4,'Value');

% Structure Element
val5 = get(handles.radiobutton5,'Value');
val6 = get(handles.radiobutton6,'Value');
val7 = get(handles.radiobutton7,'Value');
val8 = get(handles.radiobutton8,'Value');

% R
R = str2double(get(handles.edit1,'String'));

%
if val5 == 1
    se = strel('disk',R);
elseif val6 == 1
    se = strel('diamond',R);
elseif val7 == 1
    se = strel('square',R);
elseif val8 == 1
    se = strel('line',R,45);
end


if val1 == 1
    Img_Gray = imerode(Img_Gray,se);
    Img_bw = imerode(Img_bw,se);
elseif val2 == 1
    Img_Gray = imdilate(Img_Gray,se);
    Img_bw = imdilate(Img_bw,se);
elseif val3 == 1
    Img_Gray = imopen(Img_Gray,se);
    Img_bw = imopen(Img_bw,se);
elseif val4 == 1
    Img_Gray = imclose(Img_Gray,se);
    Img_bw = imclose(Img_bw,se);
end

axes(handles.axes1)
cla('reset')
imshow(Img_Gray)
title('Grayscale Image')
axes(handles.axes2)
cla('reset')
imshow(Img_bw)
title('Binary Image')

handles.Img_Gray = Img_Gray;
handles.Img_bw = Img_bw;
guidata(hObject,handles)

% --- Executes on slider movement.
function slider1_Callback(hObject, eventdata, handles)
% hObject handle to slider1 (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,'Value') returns position of slider
% get(hObject,'Min') and get(hObject,'Max') to determine range of slider
val = get(hObject,'Value');
set(handles.edit1,'String',val+1)

% --- Executes during object creation, after setting all properties.
function slider1_CreateFcn(hObject, eventdata, handles)
% hObject handle to slider1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called

% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor',[.9 .9 .9]);
end


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.
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 on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
Img_Gray = handles.Img_Gray2;
Img_bw = handles.Img_bw2;

axes(handles.axes1)
cla('reset')
imshow(Img_Gray)

axes(handles.axes2)
cla('reset')
imshow(Img_bw)

handles.Img_Gray = Img_Gray;
handles.Img_bw = Img_bw;
guidata(hObject,handles)

Save

Posted on August 11, 2015, in Pengenalan Pola, Pengolahan Citra and tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , . Bookmark the permalink. 2 Comments.

  1. halo mas, mengenai morfologi ekstraksi ciri di citra bw apakah ada referensi materi dan matlab codenya? terimakasih sebelumnya

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