How to use a CNN - classify in a GUI file?

Hi all:

I have a .mat file where I call a CNN trained after that I read an image and CNN classifies the image and shows it on the screen, all that works well.

The code is the following:

load myNet.mat

[filename, filepath] = uigetfile ({'*. png'}, 'Select and image');
picture = imread (strcat (filepath, filename));

picture2 = imresize (picture, [227,227]); % Resize the picture
label = classify (myNet, picture2); % Classify the picture

image (picture2); % Show the picture
title (char (label)); % Show the label
drawnow;

clearvars picture picture2

Now I want to make a user interface (GUIDE) and put the same code in several buttons, in a button I have the call to CNN and in another the selection of the image, but where I mark error is in the line:

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)

 myNet = handles.data;

  [nama_file, nama_path] = uigetfile ({'*. png'; '. jpg'; '. tif';}, ...
       'Upload image');
  
  if ~ isequal (nama_file, 0)
         handles.data1 = imread (fullfile (nama_path, nama_file));
         guidata (hObject, handles);
         axes (handles.axes1);
           imshow (handles.data1);
            title ('Test image');
                  handles.img = handles.data1;
                  
        picture = handles.data1;
        picture2 = imresize (picture, [227,227]); % Resize the picture
       label = classify (myNet, picture2); % Classify the picture
        handles.text1.String = label; % Do it like this instead of using set ()
        clearvars picture picture2
  else
      return
  end     

The line:

label = classify (myNet, picture2); % Classify the picture

It marks me the following errors:

* ------------------------------------------------- --------------

Error using classify (line 123)

Requires at least three arguments.

Error in apif> pushbutton3_Callback (line 152)

label = classify (myNet, picture2); % Classify the picture

Error in gui_mainfcn (line 95)

feval (varargin {:});

Error in apif (line 42)

gui_mainfcn (gui_State, varargin {:});

Error in

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

Error while evaluating UIControl Callback.

* ------------------------------------------------- --------------

Any idea what I'm doing wrong?

Thanks for your answers and regards

attentively

Angel

[Rik]

Comment posted as answer by Ranpreet Kaur:

hi angel lerma

Are you able to solve this issue? I am facing same error using classify();

Thanks