Artikel Tentang Pengolahan Citra , Ekstraksi Ciri Citra Grayscale,,,???
1. Buka aplikasi MATLAB, lalu klik menu HOME setelah itu klik menu NEW, setelah terbuka semua lalu klik GUIDE Quick Start, kemudian pilih Blank GUI lalu pilih Browser sebagai tempat penyimpanan program, KLIK OK
2. Langkah pertama melakukan proses GUI . Setelah
selesai melakukan proses Gui dan berhasil lalu klik RUN, setelah itu baru
mengerjakan codingnya....
3. Langkah kedua, Melakukan Pemograman/Coding
function varargout = NOVIA(varargin)
% NOVIA MATLAB code for NOVIA.fig
% NOVIA, by itself, creates a new NOVIA or raises the existing
% singleton*.
%
% H = NOVIA returns the handle to a new NOVIA or the handle to
% the existing singleton*.
%
% NOVIA('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in NOVIA.M with the given input arguments.
%
% NOVIA('Property','Value',...) creates a new NOVIA or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before NOVIA_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to NOVIA_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 NOVIA
% Last Modified by GUIDE v2.5 03-Mar-2020 09:28:34
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @NOVIA_OpeningFcn, ...
'gui_OutputFcn', @NOVIA_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 NOVIA is made visible.
function NOVIA_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 NOVIA (see VARARGIN)
% Choose default command line output for NOVIA
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes NOVIA wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = NOVIA_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)
[name_file1,name_path1] = uigetfile(...
{'*.bmp;*.jpg;*.tif','Files of type (*.bmp,*.jpg,*.tif)';
'*.bmp','File Bitmap (*.bmp)';...
'*.jpg','File Jpeg (*.jpg)';
'*.tif','File Tif (*.tif)';
'*.*','All Files (*.*)'},...
'Open Image');
if ~isequal(name_file1,0)
handles.data1 = imread(fullfile(name_path1,name_file1));
guidata(hObject,handles);
axes(handles.axes1);
imshow(handles.data1);
else
return;
end
% 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)
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
image1 = handles.data1;
gray = rgb2gray(image1);
axes(handles.axes2);
imshow(gray);
handles.data2 = gray;
guidata(hObject,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)
% --- Executes on slider movement.
function slider1_Callback(hObject, eventdata, handles)
gray = handles.data2;
value = get(handles.slider1,'value');
thresh = imcomplement(im2bw(gray,value/255));
axes(handles.axes2);
imshow(thresh);
handles.data3=thresh;
guidata(hObject,handles);
set(handles.edit1,'String',value)
% 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
% --- 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
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
thresh = handles.data3;
[name_file_save,path_save] = uiputfile( ...
{'*.bmp','File Bitmap (*.bmp)';...
'*.jpg','File Jpeg (*.jpg)';
'*.tif','File Tif (*.tif)';
'*.*','All Files (*.*)'},...
'Save Image');
if ~isequal(name_file_save,0)
imwrite(thresh,fullfile(path_save,name_file_save));
else
return
end
% 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)
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
function varargout = NOVIA(varargin)
% NOVIA MATLAB code for NOVIA.fig
% NOVIA, by itself, creates a new NOVIA or raises the existing
% singleton*.
%
% H = NOVIA returns the handle to a new NOVIA or the handle to
% the existing singleton*.
%
% NOVIA('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in NOVIA.M with the given input arguments.
%
% NOVIA('Property','Value',...) creates a new NOVIA or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before NOVIA_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to NOVIA_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 NOVIA
% Last Modified by GUIDE v2.5 03-Mar-2020 09:28:34
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @NOVIA_OpeningFcn, ...
'gui_OutputFcn', @NOVIA_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 NOVIA is made visible.
function NOVIA_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 NOVIA (see VARARGIN)
% Choose default command line output for NOVIA
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes NOVIA wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = NOVIA_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)
[name_file1,name_path1] = uigetfile(...
{'*.bmp;*.jpg;*.tif','Files of type (*.bmp,*.jpg,*.tif)';
'*.bmp','File Bitmap (*.bmp)';...
'*.jpg','File Jpeg (*.jpg)';
'*.tif','File Tif (*.tif)';
'*.*','All Files (*.*)'},...
'Open Image');
if ~isequal(name_file1,0)
handles.data1 = imread(fullfile(name_path1,name_file1));
guidata(hObject,handles);
axes(handles.axes1);
imshow(handles.data1);
else
return;
end
% 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)
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
image1 = handles.data1;
gray = rgb2gray(image1);
axes(handles.axes2);
imshow(gray);
handles.data2 = gray;
guidata(hObject,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)
% --- Executes on slider movement.
function slider1_Callback(hObject, eventdata, handles)
gray = handles.data2;
value = get(handles.slider1,'value');
thresh = imcomplement(im2bw(gray,value/255));
axes(handles.axes2);
imshow(thresh);
handles.data3=thresh;
guidata(hObject,handles);
set(handles.edit1,'String',value)
% 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
% --- 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
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
thresh = handles.data3;
[name_file_save,path_save] = uiputfile( ...
{'*.bmp','File Bitmap (*.bmp)';...
'*.jpg','File Jpeg (*.jpg)';
'*.tif','File Tif (*.tif)';
'*.*','All Files (*.*)'},...
'Save Image');
if ~isequal(name_file_save,0)
imwrite(thresh,fullfile(path_save,name_file_save));
else
return
end
% 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)
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
4. Setelah proses coding selesai baru akan muncul hasil
proses RUN-nya, setelah itu kita bisa mencobanya. contohnya
seperti yang ad di bawah ini:
a.
Langkah pertama membaca dan
menampilkan RGB asli
b.
Kedua mengkonveksi citra
RGB menjadi citra Grayscal.
5. Hasil dari save image pada proses di atas !!!
TERIMAKASIH *_*
😉
BalasHapus