Pola Tekstur


Berikut ini merupakan pemrograman gui matlab untuk analisis tekstur menggunakan metode Gray-Level Co-Occurrence Matrix (GLCM)

1. Gray-Level Co-Occurrence Matrix (GLCM) dengan pixel distance = 1
1

2. Gray-Level Co-Occurrence Matrix (GLCM) dengan pixel distance = 2 2

3. Gray-Level Co-Occurrence Matrix (GLCM) dengan pixel distance = 3 3
Source Code:

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

% Last Modified by GUIDE v2.5 11-Aug-2015 10:46:06

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

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

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

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


% --- Outputs from this function are returned to the command line.
function varargout = Texture_Analysis_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,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 = imread(fullfile(pathname,filename));
        axes(handles.axes1)
        cla('reset')
        imshow(Img)
        title('Grayscale Image')
    else
        Img = rgb2gray(imread(fullfile(pathname,filename)));
        axes(handles.axes1)
        cla('reset')
        imshow(Img)
        title('Grayscale Image')
    end
else
    return
end

handles.Img = Img;
guidata(hObject,handles);

% --- 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 = handles.Img;
pixel_dist = str2double(get(handles.edit1,'String'));
GLCM = graycomatrix(Img,'Offset',[0 pixel_dist; -pixel_dist pixel_dist; -pixel_dist 0; -pixel_dist -pixel_dist]);
stats = graycoprops(GLCM,{'contrast','correlation','energy','homogeneity'});

Contrast = stats.Contrast;
Correlation = stats.Correlation;
Energy = stats.Energy;
Homogeneity = stats.Homogeneity;

data = get(handles.uitable1,'Data');
data{1,1} = num2str(Contrast(1));
data{1,2} = num2str(Contrast(2));
data{1,3} = num2str(Contrast(3));
data{1,4} = num2str(Contrast(4));
data{1,5} = num2str(mean(Contrast));

data{2,1} = num2str(Correlation(1));
data{2,2} = num2str(Correlation(2));
data{2,3} = num2str(Correlation(3));
data{2,4} = num2str(Correlation(4));
data{2,5} = num2str(mean(Correlation));

data{3,1} = num2str(Energy(1));
data{3,2} = num2str(Energy(2));
data{3,3} = num2str(Energy(3));
data{3,4} = num2str(Energy(4));
data{3,5} = num2str(mean(Energy));

data{4,1} = num2str(Homogeneity(1));
data{4,2} = num2str(Homogeneity(2));
data{4,3} = num2str(Homogeneity(3));
data{4,4} = num2str(Homogeneity(4));
data{4,5} = num2str(mean(Homogeneity));

set(handles.uitable1,'Data',data,'ForegroundColor',[0 0 0])

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

Materi lain mengenai pengenalan pola tekstur di antaranya adalah:
1. Algoritma k-means clustering dan Naive Bayes classifier untuk Pengenalan Pola Tesktur
2. Segmentasi Pola Tekstur menggunakan Filter Gabor

  1. Makasih mas adi kalau ada yang nanda kurang ngerti nanti nda tanya lagi boleh kan mas🙂

  2. ??? Error using ==> iptcheckinput
    Function GRAYCOMATRIX expected its third input,
    OFFSET, to be integer-valued.

    Error in ==> graycomatrix>ParseInputs at 290
    iptcheckinput(offset,{‘logical’,’numeric’},…

    Error in ==> graycomatrix at 165
    [I, Offset, NL, GL, makeSymmetric] =
    ParseInputs(varargin{:});

    Error in ==> nyoba>pushbutton2_Callback at 116
    GLCM = graycomatrix(Img,’Offset’,[0 pixel_dist;
    -pixel_dist pixel_dist;

    Error in ==> gui_mainfcn at 96
    feval(varargin{:});

    Error in ==> nyoba at 42
    gui_mainfcn(gui_State, varargin{:});

    Error in ==>
    @(hObject,eventdata)nyoba(‘pushbutton2_Callback’,hObject,eventdata,guidata(hObject))

    ??? Error while evaluating uicontrol Callback

    saya udah coba tpi ada kesalahan gini ini kenapa ya kak ?

  3. Assalamuallaikum wr.wb

    Maaf mas, saya mau tanya untuk mixing citra. Ada contoh atau source codenya engga ya mas? saya mau coba untuk mixing banyak citra. kemudian di cari nilai kurtosis sebagai patokannya.

    trimakasih mas.

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