How do I make the GUI executable

Hi guys,

What I want to ask is the general code can’t be put into the GUI, because the above code can run without GUI code, but once the GUI is added, it will be like this.

The code is related to deep learning. I want to change the part that shows the numbers to the actions I have learned. I hope that the part of the result is the action instead of the number. But I have encountered this problem so I replaced it with a number. I am still a beginner Hope everyone can help me.

Answer 1

[Image Analyst]

The network called "netTransfer" needs to be in scope. It is not. You need to make sure netTransfer is in the workspace of the function or script where you're calling classify().

[Dong Yi]

This is the case without GUI, which is normal.

[Dong Yi]

x is the action given by my deep learning. My goal is to add this piece of code to the GUI to become executable and take out the x worth action and display it in the GUI.

[Image Analyst]

Put these lines before the classify() line:

whos d
whos netTransfer

What does it show in the command window?

[Dong Yi]

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

[Dong Yi]

Which paragraph is my question, sorry.

[Dong Yi]

Can you teach me which code to add?

[Walter Roberson]

Your GUI will load the network at some point during its initialization. Have your GUI store the network in the handles structure, and use guidata() to update the master copy of the handle structure.

Then inside your function that needs to use the network to classify a sound, then pull the stored network out of the handle structure.

Quoting the relevant guidance from the FAQ, from near the very top of the section pointed to:

The main techniques are:

• Using the handles structure. You can dynamically add on new members to the handles structure that contain your variables that you want to pass in. Unlike global variables, which expose the variables only where you put the global statement, attaching to the handles structure and passing handles will share all the variables you have attached to the handles structure. This could expose variables to your function that you did not need or want exposed. Since variables passed in to MATLAB functions are "pass by value" and not "pass by reference" if you change any of the variables, you are only changing the local copy. If you change any of the variables attached as members of the handle structure, and you want to retain these changed values in the calling function, you will have to return the handles structure as an output of your function, and accept it in your calling function, or else use the guidata() function. Otherwise changes you make to the handles structure variables are only local and will not survive once the function has returned.

[Dong Yi]

Is there an example?

[Walter Roberson]

function GUI2_Openfcn(hObject, event, handles)
   filestruct = load('FileWithNetwork.mat');
   handles.netTransfer = filestruct.netTransfer;
   guidata(hObject, handles);
end

function pushbutton1_callback(hObject, event, handles)
    netTransfer = handles.netTransfer;
    now do your stuff
end

[Dong Yi]

Thank you, it can be executed. I want to make sure that this kind of real-time code can be recognized immediately and sent the result immediately?

[Dong Yi]

The first picture is the result of normal running out without adding the GUI.

The second one is the result of adding the GUI.

[Walter Roberson]

I suggest changing

cc = imread(pic);

to

if ~exist(pic, 'file'); continue; end  %skip unavailable files

As for the problem with axes:

When you use imshow() and the current axes occupies the entire default axes area for the figure, then imshow() deletes the axes and recreates it, unless "hold" is on for the axes.

I recommend against using imshow() inside a GUI; I recommend that you only use imshow() for quick exploration of images when you do not care about making a GUI.

[Dong Yi]

Is that right

If so, what should cc be changed to?

[Dong Yi]

Or I can set another button to execute the mat file. If it can, I want to know why there is no x, y value.

[Image Analyst]

When you say "there is no x, y value", are you saying that after the loop, x and y are still empty? If so you need to follow normal, typical debugging steps, like setting a breakpoint on the classify() line and see if scores returns anything or if it is also null. If x and y are null, and either scores is null or you did not execute the call to classify, then they'll be null after the loop also.

Debugging in MATLAB | Doug's MATLAB Video Tutorials

And the for loop you should have this:

for k = 1 : zz
    baseFileName = sprintf('%012d_rendered.png', k);
    fullFileName = fullfile(pwd, baseFileName);
    if ~isfile(fullFileName)
        continue; % No such file exists by this name.
    end
    rgbImage = imread(fullFileName);
    % Needs to be color for AlexNet.
    [rows, columns, numberOfColorChannels] = size(rgbImage);
    if numberOfColorChannels == 1
        % It's gray scale but needs to be color for AlexNet
        rgbImage = cat(3, rgbImage, rgbImage, rgbImage);
    end
    % Needs to be 227x227 for AlexNet, so resize it.
    resizedImage = imresize(rgbImage, [227, 227]);
    [YPred, scores] = classify(handles.netTransfer, resizedImage);
    x = [x; scores(:)];
    y = [y; scored(:)];  % Why are x and y the same??????
end

[Dong Yi]

sorry x is YPred.

But I have typed in the last line

set(handles.text2,'String','ok');

The result also shows OK. Doesn’t it mean that the entire code has been run?

Sorry that my English is not very good, I am also a beginner to MATLAB, please forgive me.

[Dong Yi]

[Walter Roberson]

    fullFileName = fullfile(pwd, baseFileName);

[Image Analyst]

because MATLAB is case sensitive.

[Dong Yi]

It can be executed but there is still no x value in the workspace.

My ideal gui is to run through all the pictures in the folder and display the recognition results, just like the principle of turning a book.

[Walter Roberson]

Please post code instead of images of code. I am not going to type in all of your code by hand just to show you a change.

[Dong Yi]

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)
netTransfer = handles.netTransfer;
zz=659;
x=[];
y=[];
for k = 1 : zz
    baseFileName = sprintf('%012d_rendered.png', k);
    fullFileName = fullfile(pwd,baseFileName);
    if ~isfile(fullFileName)
        continue; % No such file exists by this name.
    end
    rgbImage = imread(fullFileName);
    % Needs to be color for AlexNet.
    [rows, columns, numberOfColorChannels] = size(rgbImage);
    if numberOfColorChannels == 1
        % It's gray scale but needs to be color for AlexNet
        rgbImage = cat(3, rgbImage, rgbImage, rgbImage);
    end
    % Needs to be 227x227 for AlexNet, so resize it.
    resizedImage = imresize(rgbImage, [227, 227]);
    [YPred, scores] = classify(handles.netTransfer, resizedImage);
    x = [x; YPred(:)];
    y = [y; scores(:)];  
end

[Dong Yi]

function varargout = GUI2(varargin)
% GUI2 MATLAB code for GUI2.fig
%      GUI2, by itself, creates a new GUI2 or raises the existing
%      singleton*.
%
%      H = GUI2 returns the handle to a new GUI2 or the handle to
%      the existing singleton*.
%
%      GUI2('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in GUI2.M with the given input arguments.
%
%      GUI2('Property','Value',...) creates a new GUI2 or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before GUI2_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to GUI2_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 GUI2

% Last Modified by GUIDE v2.5 05-Dec-2020 17:13:11

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @GUI2_OpeningFcn, ...
                   'gui_OutputFcn',  @GUI2_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 GUI2 is made visible.
function GUI2_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 GUI2 (see VARARGIN)

% Choose default command line output for GUI2
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

   

% UIWAIT makes GUI2 wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
   filestruct = load('matlab.mat');
   handles.netTransfer = filestruct.netTransfer;
   guidata(hObject, handles);

function varargout = GUI2_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)
netTransfer = handles.netTransfer;
xx=1000;
x=[];
y=[];
for ii=1:659
    pic=sprintf('%012d_rendered.png',ii)
    cc = imread(pic);
    d = imresize(cc,[227, 227]);
    [YPred,scores] = classify(netTransfer,d);
    x=[x;YPred];

    
    axes(handles.axes1);
    imshow(cc);
    
    set(handles.text2,'String',ii);
    pause(0.087);
end


% --- 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)


% --- 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)
netTransfer = handles.netTransfer;
zz=659;
x=[];
y=[];
for k = 1 : zz
    baseFileName = sprintf('%012d_rendered.png', k);
    fullFileName = fullfile(pwd,baseFileName);
    if ~isfile(fullFileName)
        continue; % No such file exists by this name.
    end
    rgbImage = imread(fullFileName);
    % Needs to be color for AlexNet.
    [rows, columns, numberOfColorChannels] = size(rgbImage);
    if numberOfColorChannels == 1
        % It's gray scale but needs to be color for AlexNet
        rgbImage = cat(3, rgbImage, rgbImage, rgbImage);
    end
    % Needs to be 227x227 for AlexNet, so resize it.
    resizedImage = imresize(rgbImage, [227, 227]);
    [YPred, scores] = classify(handles.netTransfer, resizedImage);
    x = [x; YPred];
    y = [y; scores(:)];  
end
set(handles.text2,'String','LOAD');

[Walter Roberson]

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)
netTransfer = handles.netTransfer;
zz=659;
x=[];
y=[];
number_loaded = 0;
filenames_used = {};
for k = 1 : zz
    baseFileName = sprintf('%012d_rendered.png', k);
    fullFileName = fullfile(pwd,baseFileName);
    if ~isfile(fullFileName)
        continue; % No such file exists by this name.
    end
    rgbImage = imread(fullFileName);
    number_loaded = number_loaded + 1;
    % Needs to be color for AlexNet.
    [rows, columns, numberOfColorChannels] = size(rgbImage);
    if numberOfColorChannels == 1
        % It's gray scale but needs to be color for AlexNet
        rgbImage = cat(3, rgbImage, rgbImage, rgbImage);
    end
    % Needs to be 227x227 for AlexNet, so resize it.
    resizedImage = imresize(rgbImage, [227, 227]);
    [YPred, scores] = classify(handles.netTransfer, resizedImage);
    x = [x; YPred(:)];
    y = [y; scores(:)];
    filenames_used{number_loaded} = baseFileName;
end

handles.x = x;
handles.y = y;
handles.filenames_used = filenames_used;
guidata(handles);

if number_loaded == 0
    fprintf('No appropriate files found in current directory\n');
else
    fprintf('%d files found in current directory\n', number_loaded)
end

[Dong Yi]

[Image Analyst]

Somehow "handles" got blown away before you clicked pushbutton3. Can you search your code and see if there is a "clear" or "clearvars" anywhere in your code? Otherwise, attach your latest m-file and fig file and a few PNG files and any mat file that is needed and I'll try to run it.

[Dong Yi]

Not pass too much at once

[Dong Yi]

The mat file is too big. How can I send it to you?

[Image Analyst]

Maybe a link to your OneDrive or GoogleDrive.

[Walter Roberson]

    guidata(hObject, handles);

[Dong Yi]

Can you give me your mail?

[Walter Roberson]

Image Analyst does not make his email address available.

[Dong Yi]

Can I share with Github?

[Walter Roberson]

I know there are some file distribution sites he cannot access for work security reasons, but I do not know which they are. He suggested OneDrive or GoogleDrive, so we can be sure you can access those.

[Dong Yi]

https://1drv.ms/u/s!AnlI8TVxvUN0gyKqmmqQfWffGjSh?e=U05Qkz

[Image Analyst]

Have you already tried calling tech support?

[Dong Yi]

I haven't tried it, but I want to try, although my English is not very good

[Walter Roberson]

Unfortunately, we cannot load that .mat file without the 14000 png files in C:\Users\User\Desktop\test\handdown\ (and we have to place them in that exact directory.) However, I suspect we do not need that part of the .mat file so we can possibly ignore that.

[Walter Roberson]

Okay, so what problem are we trying to solve now, after the fix I posted above

    guidata(hObject, handles);

?

I ran the code and I do not see any obvious problems.

I do recommend that you save only the netTransfer in the .mat file you load, or else that you change the load() to only load the netTransfer variable out of the file. But that is an efficiency matter, not a fundamental problem.

I also recommend that you put a semi-colon on the end of the assignment to 'pic' in pushbutton1_Callback and that you add

        if ~exist(pic, 'file'); continue; end;

right after the assignment to pic.

[Dong Yi]

I need the x value in the workspace. My GUI result is that when I open openpose, I let the photos in the storage folder show up and perform deep learning, so that the x value can run out of the text.

[Walter Roberson]

Which workspace do you need the x value to end up in, and which action needs to trigger it being put there?

You are already saving the x data by using

handles.x = x;

so it is already available for you to work with -- such as if you added another push button to retrieve handles.x and do something with it.

[Image Analyst]

Like he suggested simply save the netTransfer in a mat file

save('netTransfer.mat', 'netTransfer');

after you create it, and recall it when you are in the function that needs it

s = load('netTransfer.mat');
netTransfer = s.netTransfer;

[Dong Yi]

But is there YPred in the x value? I didn’t even see it.

[Image Analyst]

No of course not. You get Ypred as an output of classify(). And to call classify() you need netTransfer, which is what you get (after you created it and wrote it out to disk) when you call load() to read it in back from disk. Then you're building up x from appending Ypred (at least that's what the code you showed does).

[Walter Roberson]

Here is cleaned up code.

It writes the x and y data into the base workspace. For emphasis, it also writes all_YPred into the base workspace -- which is just a copy of x. Just to emphasize that x and the accumulated YPred are the same.

It also writes filenames_used to the base workspace -- because it is meaningless to look at the YPred values without knowing which files they came from.

[Dong Yi]

[Dong Yi]

I need this value to be static text on the GUI.

[Walter Roberson]

You need a static text that contains the 264 words that are similar to 'handdown' and 'playphone' ?

Do you have a quite wide display, or should we be programming in a quite small font?

264 words of 9 or 10 characters each (including space between them) is about 2508 letters on average. If you used font size 6 (small but readable with effort) then that would be over 15000 pixels. It is unlikely that your monitor has a display resolution of 15000 pixels wide.

[Dong Yi]

When GUI axes show the first picture, my text shows the results of deep learning, similar to the principle of turning books.

[Dong Yi]

One picture with one action like this.

[Walter Roberson]

Attached.

[Dong Yi]

Thank you. The classify button has achieved my goal. However, the play button will still run out of ERROR.

[Walter Roberson]

I do not know what the predictions variable is. That was not a variable name that I put in.

[Dong Yi]

What is wrong with this part

[Dong Yi]

I also want to know one thing

Is there a way to combine these two buttons

The result of the GUI is that I immediately took a picture, immediately recognized the action and gave the action result, which means it is instant.

[Image Analyst]

Yes, just put all the code for that into the callback function of one button.

[Dong Yi]

Can you all run? I can't do this part.

[Image Analyst]

Evidently predictions(ii) is not a string or character array. What kind of variable is it?

[Dong Yi]

What should it be!!

[Image Analyst]

It should be a string if you're going to put it into a static text label. To find out what it actually is, look at the classify() documentation or do this:

whos predictions

[Walter Roberson]

Put breakpoints at line 154

y = vertcat(y{1:number_loaded});

and at line 97

xx = length(filenames);

When you push Classify it should stop at the first of the breakpoints. Ask it what class(x) is, and then continue running. When you push Play Results it should stop at the second of the breakpoints. Ask it what class(predictions) is and then continue running. Let us know what the results are.

[Dong Yi]

Is this the case?

[Image Analyst]

OK, but what does it show as the data type for predictions and Ypred in the Workspace panel? Or type this in the command window

>> whos predictions

>> whos YPred

but like I said, they won't be strings or character arrays so you can't assign them to a static text label.

[Dong Yi]

But isn't it only static text that can display my results?

[Image Analyst]

Correct, unless you just want to see what you have shown above. So you need to figure out how to convert categorical to character array so you can then assign it to the static text label on your GUI. I'm not sure how to do that off the top of my head.

[Dong Yi]

Can this part work?

about ""So you need to figure out how to convert categorical to character""?

[Walter Roberson]

Use

    set(handles.text2,'String', string(predictions(ii)));

You are using R2018a it appears. The conversion to character is handled automatically by R2020b that I tested in.

[Dong Yi]

Thank you both for learning a lot. The current problems have been solved. If there are any related questions, I will come up and ask!!!!

[Dong Yi]

But can I trouble you?

Although the immediacy method is to synthesize a button, how should I typeset it?

[Walter Roberson]

I do not understand the question?

If you are asking about using latex such as then you cannot do that with a uicontrol text field for a traditional figure (such as used by GUIDE)

If you are asking about setting font size or font name, you can do that by setting the appropriate property for the uicontrol text field, such as

set(handles.text, 'FontSize', 10)

[Dong Yi]

Because the result of my current GUI is to shoot a folder with openpose and then play.

What I want to show now is that when I open openpose, I also open my GUI. When openpoes takes a photo, my GUI will immediately read the recognition action, and immediately give the result, an instant effect.

[Walter Roberson]

That does not sound to me to have anything to do with typesetting ???

https://www.mathworks.com/matlabcentral/answers/99277-how-do-i-programmatically-detect-a-change-in-a-directory

[Dong Yi]

So how should I put the codes of the two buttons together?

[Walter Roberson]

It should be obvious. The classify button reads one image at a time and classifies it and stores one result at a time. The display button reads one image at a time and displays it along with the corresponding result from predictions. It is obvious that you could have the classify button display the image just read along with the classification result for it.

[Image Analyst]

Just to be absurdly explicit, it would be something like this:

function pushbutton1_Callback(hObject, eventData, handles)
% Code to read
imread(......)
end

function pushbutton2Callback(hObject, eventData, handles)
% Code to classify
classify(.....)
end

you would now have

function pushbuttonBoth_Callback(hObject, eventData, handles)
% Code to read
imread(......)
% Code to classify
classify(.....)
end

[Dong Yi]

[Image Analyst]

That is not a field of handles. You probably forgot to call guidata() right after you tacked on that field in the function wherever you did that.

[Dong Yi]

How can I apply it?

[Dong Yi]

How should I use it?

[Dong Yi]

  filenames_used(number_loaded+1:end) = [];
    x = vertcat(x{1:number_loaded});
    y = vertcat(y{1:number_loaded});
    
    handles.x = x;
    handles.y = y;
    handles.filenames_used = filenames_used;
    guidata(hObject, handles);
    
    assignin('base', 'x', x);
    assignin('base', 'y', y);
    assignin('base', 'all_YPred', x);
    assignin('base', 'filenames_used', filenames_used);
    
if number_loaded == 0
    fprintf('No appropriate files found in current directory\n');
else
    fprintf('%d files found in current directory\n', number_loaded)
    set(handles.pushbutton1, 'enable', 'on')
end
set(handles.text2,'String', 'Please execute');

Do I have to add this paragraph? If I only use a button.

[Walter Roberson]

Yes, all of that code is necessary. It is present to deal with your requirement that x must end up in "the workspace". You insisted on that multiple times when we said that did not make sense to do, so you are stuck with it now.

[Dong Yi]

So am I going to squeeze them all into a for?

[Walter Roberson]

No, that section of code is strictly after the for.

The new things you need to do before the for:

• activate your axes as the place to plot to

The new things you need to do inside your for, after you have classified the current file:

• plot the current data
• set the text field to reflect string() of the result that was just predicted for this file
• pause() to give time for the plot to show up

[Dong Yi]

When I have a large number of photos, what is the situation where it cannot be executed?

[Dong Yi]

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)
netTransfer = handles.netTransfer;
zz = 10000;
x = cell(zz, 1);
y = cell(zz, 1);
number_loaded = 0;
filenames_used = cell(zz,1);
for k = 1 : zz
    baseFileName = sprintf('%012d_rendered.png', k);
    fullFileName = fullfile(pwd,baseFileName);
    if ~isfile(fullFileName)
        continue; % No such file exists by this name.
    end
    rgbImage = imread(fullFileName);
    number_loaded = number_loaded + 1;
    % Needs to be color for AlexNet.
    [~, ~, numberOfColorChannels] = size(rgbImage);
    if numberOfColorChannels == 1
        % It's gray scale but needs to be color for AlexNet
        rgbImage = cat(3, rgbImage, rgbImage, rgbImage);
    end
    % Needs to be 227x227 for AlexNet, so resize it.
    resizedImage = imresize(rgbImage, [227, 227]);
    [YPred, scores] = classify(netTransfer, resizedImage);
    x{k} = YPred(:);
    y{k} = scores(:);
    filenames_used{number_loaded} = baseFileName;
end

    filenames_used(number_loaded+1:end) = [];
    x = vertcat(x{1:number_loaded});
    y = vertcat(y{1:number_loaded});
    
    handles.x = x;
    handles.y = y;
    handles.filenames_used = filenames_used;
    guidata(hObject, handles);
    
    assignin('base', 'x', x);
    assignin('base', 'y', y);
    assignin('base', 'all_YPred', x);
    assignin('base', 'filenames_used', filenames_used);
    
if number_loaded == 0
    fprintf('No appropriate files found in current directory\n');
else
    fprintf('%d files found in current directory\n', number_loaded)
    set(handles.pushbutton1, 'enable', 'on')
end
ax = handles.axes1;

filenames = handles.filenames_used;
predictions = handles.x;

xx = length(filenames);

for ii=1:xx
    pic = filenames{ii};
    if ~exist(pic, 'file'); continue; end
    
    cc = imread(pic);

    imshow(cc, 'Parent', ax);
    
    set(handles.text2,'String', string(predictions(ii)));
    set(handles.text3,'String', ii);
    pause(0.087);
end

I have tried a lot of sorting but the result is not real-time. If it is executed when openpose takes 100 pictures, he will only read 100 pictures, but my openpose is continuously outputting. How do I let him? Display one after reading one?

It has troubled me for a long time.

[Walter Roberson]

When I have a large number of photos, what is the situation where it cannot be executed?

Sorry, I do not understand that question.

[Dong Yi]

I have tried a lot of sorting but the result is not real-time. If it is executed when openpose takes 100 pictures, he will only read 100 pictures, but my openpose is continuously outputting. How do I let him? Display one after reading one?

[Walter Roberson]

With regards to updating while pictures are being taken: you did not implement any of the logic that was suggested in my response https://www.mathworks.com/matlabcentral/answers/679288-how-do-i-make-the-gui-executable#comment_1196519

You also have not correctly merged the playing code with the prediction code. I already explained what you have to do, in https://www.mathworks.com/matlabcentral/answers/679288-how-do-i-make-the-gui-executable#comment_1200960

I am not eager to implement this all for you as you do not appear to be learning from the steps I tell you to do, and you do not appear to be learning from seeing me implement the steps that I told you to do. The point of you having been assigned this project in the first place was for you to learn how to program: the point was not for you to find someone who would do all of the code for you.

[Dong Yi]

    filenames_used{number_loaded} = baseFileName;
    filenames_used(k+1:end) = [];
    x = vertcat(x{k});
    y = vertcat(y{k});
    pic=sprintf('%012d_rendered.png',k);
    cc = imread(pic);
    
    imshow(cc, 'Parent', ax);
    predictions = handles.x;
    set(handles.text2,'String', string(predictions(k)));
    set(handles.text3,'String', k);
    pause(0.087);

Is it because my X value is not read in?

[Image Analyst]

No, we discussed this before. It's because you said predictions(k) is a categorical, and evidently a categorical can't be converted to a string. Maybe use a switch statement to check predictions(k) and assign the proper string by hard coding it in.

After 90 comments, I'm about reaching my limit. Like I said before can you call tech support? You said you could/would. Trust me, they have people there who can speak English, Chinese, Hindi, and lots of other languages, even if you call the USA office in Natick. I'm sure you'll be able to communicate with them in your native language.

[Walter Roberson]

You have

x = vertcat(x{k});

but you

predictions = handles.x;

and you had not updated handles.x between those two. So you are not using the most recently calculated predictions; you are using whatever happened to be in handles.x .