Having a logo or picture on my own GUI

I have been trying to add a picture or logo to my own built GUI. Despite advices picked up from another thread I have been unsuccessful, mostly due to my lack of understanding how different built in functions such as handles, callbacks, etc work. Here is a brief description: I like to be able to type in a file name that I can use to output my results into. Then there are two buttons to perform different tasks. Now, I have not quite figured out how to inquire for the output file name and definitely I do not know how to have a logo image on this gui. What you see is my understanding of what has been posted on another thread. Thanks for your advice.

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

% Last Modified by GUIDE v2.5 23-Apr-2012 18:09:46

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

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

    MyImage=imread('reza.jpg'); 
    imshow(MyImage, 'Parent', handles.axesImage); 

    % Update handles structure 
    guidata(hObject, handles);

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

% --- Outputs from this function are returned to the command line. 
function varargout = FastDD_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 RunTask. 
function RunTask_Callback(hObject, eventdata, handles) 
% hObject handle to RunTask (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 CalcDD. 
function CalcDD_Callback(hObject, eventdata, handles) 
% hObject handle to CalcDD (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA)

% --- Executes during object creation, after setting all properties. 
function SubjData_CreateFcn(hObject, eventdata, handles) 
% hObject handle to SubjData (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles empty - handles not created until after all CreateFcns called

function SubjData_Callback(hObject, eventdata, handles) 
% hObject handle to SubjData (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA)

%FileID = get(hObject,'String');

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

% Last Modified by GUIDE v2.5 23-Apr-2012 18:09:46

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

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

MyImage=imread('reza.jpg'); 
imshow(MyImage, 'Parent', handles.axesImage); 

% Update handles structure 
guidata(hObject, handles);

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

% --- Outputs from this function are returned to the command line. 
function varargout = FastDD_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 RunTask. 
function RunTask_Callback(hObject, eventdata, handles) 
% hObject handle to RunTask (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 CalcDD. 
function CalcDD_Callback(hObject, eventdata, handles) 
% hObject handle to CalcDD (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA)

% --- Executes during object creation, after setting all properties. 
function SubjData_CreateFcn(hObject, eventdata, handles) 
% hObject handle to SubjData (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles empty - handles not created until after all CreateFcns called

function SubjData_Callback(hObject, eventdata, handles) 
% hObject handle to SubjData (see GCBO) 
% eventdata reserved - to be defined in a future version of MATLAB 
% handles structure with handles and user data (see GUIDATA)

%FileID = get(hObject,'String');

Answer 1

[Image Analyst]

Put this code in your FastDD_OpeningFcn() function to display an image in an axes on your GUI called axesImage:

% Read in a reza's color logo image.
% Prepare the full file name.
folder = pwd;
baseFileName = 'reza.jpg';
% Get the full filename, with path prepended.
fullFileName = fullfile(folder, baseFileName);

% Check for existence. Warn user if not found.
if ~exist(fullFileName, 'file')
    % Didn't find it there. Check the search path for it.
    fullFileName = baseFileName; % No path this time.
    if ~exist(fullFileName, 'file')
        % Still didn't find it. Alert user.
        errorMessage = sprintf('Error: %s does not exist.', fullFileName);
        uiwait(warndlg(errorMessage));

    end
else
      % Read it in from disk.
      rgbImage = imread(fullFileName);

    % Display the original color image.
    axes(handles.axesImage);
    imshow(rgbImage, []);
    title('Reza Logo Image', 'FontSize', 20);   
end

[Reza]

Awesome! Thank you for putting up with my ignorance. It worked.

Answer 2

[Sean de Wolski]

Can you show us a screenshot of your GUI in GUIDE and point to the axes where you want your logo to go?

It should be a little axes where you want your logo, retagged to something like axLogo. Then in the opening function, something along the lines of:

I = imread('logo.jpg');
imshow(I,'parent',axLogo);