[NEW] (1) I click "buka citra" and choose image, i click "ekstrasi citra" not change colour . i hope i click "ekstrasi citra" change image for garyscale colour. (2) I click "buka citra" and choose image, but button "identifikasi" can not click

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

% Last Modified by GUIDE v2.5 25-Apr-2020 18:25:13

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled_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 untitled is made visible.
function untitled_OpeningFcn(hObject, ~, 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 untitled (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = untitled_OutputFcn(~, ~, 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;



function edit1_Callback(~, ~, ~) %#ok<DEFNU>
% 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, ~, ~) %#ok<DEFNU>
% 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 pushbutton1.
function pushbutton1_Callback(hObject, ~, handles) %#ok<DEFNU>
% 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)

% menampilkan menu browse file
[file, path] = uigetfile({'*.jpg;*.png', 'menampilkan'});
% jika ada file yang dipilih maka menjalankan perintah di bawahnya
if ~isequal(file,0)
 % membaca file citra yang dipilih
 img = imread(fullfile(path, file));
 % menampilkan citra pada axes
 axes(handles.axes1)
 imshow(img)
 title('Citra RGB')
 % menyimpan variabel Img pada lokasi handle (lokasi penyimpanan MATLAB
 % agar dapat dipanggil pada pushbutton yang lain
 handles.Img = img;
 guidata(hObject, handles)
 
 % mereset button2
 set(handles.pushbutton2,'Enable','on')
 set(handles.pushbutton3,'Enable','off')
 set(handles.edit1,'String',[])
 set(handles.text2,'String',[])
 set(handles.uitable2,'Data',[])
 cla(handles.axes2, 'reset')
 set(handles.axes2,'XTick',[])
 set(handles.axes2,'YTick',[])
else
return
end
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(~, ~, handles) %#ok<DEFNU>
% 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)

% memanggil variabel Img yang ada pada lokasi handles
Img = handles.Img;
% mengkonversi citra grayscale pada axes
axes(handles.axes2)
imshow(Img)
title('Citra Grayscale')
% melakukan ekstraksi ciri orde satu pada citra grayscale
function c = imhist(I)
   c = accumarray(I(:)+1, 1, [256 1]);
H = imhist(Img)';
H = H/sum(H);
I = (0:255);
CiriMEAN = I * H';
CiriENT = -H * log2(H+eps)';
CiriVAR = (I-CiriMEAN).^2*H';
CiriSKEW = (I-CiriMEAN).^3*H'/ CiriVAR^1.5;
CiriKURT = (I-CiriMEAN).^4*H'/ CiriVAR^2-3;
data_uji = [CiriMEAN,CiriENT,CiriVAR,CiriSKEW,CiriKURT];
% menampilkan hasil ekstraksi ciri orde satu pada tabel
data_tabel = cell(5,2);
data_tabel{1,1} = 'Mean';
data_tabel{2,1} = 'Entropy';
data_tabel{3,1} = 'Variance';
data_tabel{4,1} = 'Skewness';
data_tabel{5,1} = 'Kurtosis';
data_tabel{1,2} = num2str(CiriMEAN);
data_tabel{2,2} = num2str(CiriENT);
data_tabel{3,2} = num2str(CiriVAR);
data_tabel{4,2} = num2str(CiriSKEW);
data_tabel{5,2} = num2str(CiriKURT);
set (handles.text2,'String','Hasil_Ekstraksi Ciri')
set (handles.uitable2,'Data',data_tabel,'RowName',1:5)

% mereset button2
set (handles.pushbutton3,'Enable','on')
set (handles.edit1,'String',[])
% memanggil variabe data_uji yang ada lokasi handles
handles.data_uji = data_uji;
guidata(hObject, handles)
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(~, ~, handles) %#ok<DEFNU>
% 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)

% memanggil variabel data_uji yang ada pada lokasi handles
data_uji = handles.data_uji;

% load data_latih dan target_latih hasil pelatihan
dl = load('data_latih');
tl = load('target_latih');

% pengujian menggunakan algoritam multivism
output = multivsm(dl.data_latih, tl.target_latih, data_uji);

% mengubah nilai keluaran menjadi kelas keluaran
switch output
    case 1
        jenis_bunga = 'Kamboja Plumeria Alba';
    case 2
        jenis_bunga = 'Kamboja Plumeria Rubra';
    case 3
        jenis_bunga = 'Kamboja Plumeria Pudica';
    case 4 
        jenis_bunga = 'Melati Gambir';
    case 5
        jenis_bunga = 'Melati Kuning';
    otherwise
        jenis_bunga = 'tidak dikenali';
end
% menampilkan hasl identifikasi jenis bunga pada edit text
set(handles.edit1,'String',jenis_bunga)

% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(~, ~,handles) %#ok<DEFNU>
% hObject    handle to pushbutton4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% mereset button2
set(handles.pushbutton2,'Enable','on')
 set(handles.pushbutton3,'Enable','off')
 set(handles.edit1,'String',[])
 set(handles.text2,'String',[])
 set(handles.uitable2,'Data',[])
 set(handles.axes2)
 cla reset
 set(gca,'XTick',[])
 set(gca,'YTick',[])

Answer 1

[Walter Roberson]

You put the code for the replacement imhist function in the wrong place. It goes at the end of the file. You should not have changed pushbutton2_Callback to add the code: you should just have put

function c = imhist(I)
   c = accumarray(I(:)+1, 1, [256 1]);

at the bottom of the file.

And as I told you before, you should delete that code for pushbutton5_Callback.

[Fauzan Alghifari]

I already used your file, but the program remains like this

and error line 145

code : set (handles.text2,'String','Hasil_Ekstraksi Ciri')

LINE 145 : The variable 'handles' might be used before it is defined

[Fauzan Alghifari]

up sir help me

[Fauzan Alghifari]

update new error sir

Error in untitled>pushbutton3_Callback (line 161)

data_uji = handles.data_uji;

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in untitled (line 38)

gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)untitled('pushbutton3_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

[Walter Roberson]

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

% Last Modified by GUIDE v2.5 25-Apr-2020 18:25:13

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @untitled_OpeningFcn, ...
                   'gui_OutputFcn',  @untitled_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 untitled is made visible.
function untitled_OpeningFcn(hObject, ~, 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 untitled (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = untitled_OutputFcn(~, ~, 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;



function edit1_Callback(~, ~, ~) %#ok<DEFNU>
% 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, ~, ~) %#ok<DEFNU>
% 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 pushbutton1.
function pushbutton1_Callback(hObject, ~, handles) %#ok<DEFNU>
% 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)

% menampilkan menu browse file
[file, path] = uigetfile({'*.jpg;*.png', 'menampilkan'});
% jika ada file yang dipilih maka menjalankan perintah di bawahnya
if ~isequal(file,0)
 % membaca file citra yang dipilih
 img = imread(fullfile(path, file));
 % menampilkan citra pada axes
 axes(handles.axes1)
 imshow(img)
 title('Citra RGB')
 % menyimpan variabel Img pada lokasi handle (lokasi penyimpanan MATLAB
 % agar dapat dipanggil pada pushbutton yang lain
 handles.Img = img;
 guidata(hObject, handles)
 
 % mereset button2
 set(handles.pushbutton2,'Enable','on')
 set(handles.pushbutton3,'Enable','off')
 set(handles.edit1,'String',[])
 set(handles.text2,'String',[])
 set(handles.uitable2,'Data',[])
 cla(handles.axes2, 'reset')
 set(handles.axes2,'XTick',[])
 set(handles.axes2,'YTick',[])
else
return
end
% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, ~, handles) %#ok<DEFNU>
% 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)

% memanggil variabel Img yang ada pada lokasi handles
Img = handles.Img;
% mengkonversi citra grayscale pada axes
axes(handles.axes2)
imshow(Img)
title('Citra Grayscale')
% melakukan ekstraksi ciri orde satu pada citra grayscale
H = imhist(Img)';
H = H/sum(H);
I = (0:255);
CiriMEAN = I * H';
CiriENT = -H * log2(H+eps)';
CiriVAR = (I-CiriMEAN).^2*H';
CiriSKEW = (I-CiriMEAN).^3*H'/ CiriVAR^1.5;
CiriKURT = (I-CiriMEAN).^4*H'/ CiriVAR^2-3;
data_uji = [CiriMEAN,CiriENT,CiriVAR,CiriSKEW,CiriKURT];
% menampilkan hasil ekstraksi ciri orde satu pada tabel
data_tabel = cell(5,2);
data_tabel{1,1} = 'Mean';
data_tabel{2,1} = 'Entropy';
data_tabel{3,1} = 'Variance';
data_tabel{4,1} = 'Skewness';
data_tabel{5,1} = 'Kurtosis';
data_tabel{1,2} = num2str(CiriMEAN);
data_tabel{2,2} = num2str(CiriENT);
data_tabel{3,2} = num2str(CiriVAR);
data_tabel{4,2} = num2str(CiriSKEW);
data_tabel{5,2} = num2str(CiriKURT);
set (handles.text2,'String','Hasil_Ekstraksi Ciri')
set (handles.uitable2,'Data',data_tabel,'RowName',1:5)

% mereset button2
set (handles.pushbutton3,'Enable','on')
set (handles.edit1,'String',[])
% memanggil variabe data_uji yang ada lokasi handles
handles.data_uji = data_uji;
guidata(hObject, handles)
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(~, ~, handles) %#ok<DEFNU>
% 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)

% memanggil variabel data_uji yang ada pada lokasi handles
data_uji = handles.data_uji;

% load data_latih dan target_latih hasil pelatihan
dl = load('data_latih');
tl = load('target_latih');

% pengujian menggunakan algoritam multivism
output = multivsm(dl.data_latih, tl.target_latih, data_uji);

% mengubah nilai keluaran menjadi kelas keluaran
switch output
    case 1
        jenis_bunga = 'Kamboja Plumeria Alba';
    case 2
        jenis_bunga = 'Kamboja Plumeria Rubra';
    case 3
        jenis_bunga = 'Kamboja Plumeria Pudica';
    case 4 
        jenis_bunga = 'Melati Gambir';
    case 5
        jenis_bunga = 'Melati Kuning';
    otherwise
        jenis_bunga = 'tidak dikenali';
end
% menampilkan hasl identifikasi jenis bunga pada edit text
set(handles.edit1,'String',jenis_bunga)

% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(~, ~,handles) %#ok<DEFNU>
% hObject    handle to pushbutton4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)

% mereset button2
set(handles.pushbutton2,'Enable','on')
 set(handles.pushbutton3,'Enable','off')
 set(handles.edit1,'String',[])
 set(handles.text2,'String',[])
 set(handles.uitable2,'Data',[])
 set(handles.axes2)
 cla reset
 set(gca,'XTick',[])
 set(gca,'YTick',[])

function c = imhist(I)
   c = accumarray(I(:)+1, 1, [256 1]);

[Fauzan Alghifari]

Error using load

Unable to read file 'data_latih'. Input cannot be a directory.

Error in untitled>pushbutton3_Callback (line 161)

dl = load('data_latih');

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in untitled (line 38)

gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)untitled('pushbutton3_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

[Fauzan Alghifari]

all buttons function properly, except the "identifikasi" button the "identifikasi" button doesn't work

[Walter Roberson]

The code wants to load data_latih . However, you do not have a file data_latih.mat in your current directory. What you do have in your current directory is a folder named data_latih and since the code asks to load data_latih instead of data_latih.mat MATLAB sees the data_latih folder and decides to try loading the content hoping it just might happen to be a misnamed .mat file. But since it is a directory and not a file, the load fails.

What you can do to avoid this error message is to change the two loads that have load() statements to put the .mat at the end of the file name, such as

dl = load('data_latih.mat');

That should fix the code so that it no longer gives the error message about "Input cannot be a directory"

[Fauzan Alghifari]

ok thanks sir

[Fauzan Alghifari]

New question sir

https://www.mathworks.com/matlabcentral/answers/521981-how-does-the-hasil-identifikasi-box-output-text-in-accordance-with-the-name-of-the-uploaded-file

Answer 2

[Fauzan Alghifari]

up sir help me

[Fauzan Alghifari]

update new error sir

Error in untitled>pushbutton3_Callback (line 161)

data_uji = handles.data_uji;

Error in gui_mainfcn (line 95)

feval(varargin{:});

Error in untitled (line 38)

gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)untitled('pushbutton3_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.