Medical image registration based on MATLAB GUI Optical flow field model

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

% Copyright 2002- 2003. The MathWorks, Inc.

% Edit the above text to modify the response to help optical_flow

% Last Modified by GUIDE v2. 5 23-Jul- 2012. 15:10:21

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

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

% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = optical_flow_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 pushbutton_start.
function pushbutton_start_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton_start (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global FilePath1
global FilePath2
global version

if ( isequal(FilePath1,'No Picture') || isequal(FilePath2,'No Picture'))
    errordlg('Error selecting picture! '.'MATLAB error');
    return
end

switch version
    case { 0.1.2 }
        optic_flow_brox(FilePath1, FilePath2);
    case 3
        Horn_WJY(FilePath2, FilePath1);
    case 4
        Lucas_Kanade(FilePath2, FilePath1);
    otherwise
        errordlg('Selection algorithm error! '.'MATLAB error');
end



% --- Executes on button press in pushbutton_pic1.
function pushbutton_pic1_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton_pic1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global FilePath1
[FileName,PathName] = uigetfile({'*.jpg';'*.bmp'},'Select the picture');
if ~isequal(FileName,0)
    FilePath1 = fullfile(PathName,FileName);
    set(handles.edit_lj1,'String',FilePath1);
    
    img=imread(FilePath1);
    axes(handles.axes_pic1);
    imshow(img);
end
guidata(hObject, handles);


% --- Executes on button press in pushbutton_pic2.
function pushbutton_pic2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton_pic2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global FilePath2
[FileName,PathName] = uigetfile({'*.jpg';'*.bmp'},'Select the picture');
if ~isequal(FileName,0)
    FilePath2 = fullfile(PathName,FileName);
    set(handles.edit_lj2,'String',FilePath2);
    
    img=imread(FilePath2);
    axes(handles.axes_pic2);
    imshow(img);
end
guidata(hObject, handles);


function edit_lj1_Callback(hObject, eventdata, handles)
% hObject    handle to edit_lj1 (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 edit_lj1 as text
%        str2double(get(hObject,'String')) returns contents of edit_lj1 as a double


% --- Executes during object creation, after setting all properties.
function edit_lj1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit_lj1 (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
    set(hObject,'BackgroundColor'.'white');
else
    set(hObject,'BackgroundColor',get(0.'defaultUicontrolBackgroundColor'));
end



function edit_lj2_Callback(hObject, eventdata, handles)
% hObject    handle to edit_lj2 (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 edit_lj2 as text
%        str2double(get(hObject,'String')) returns contents of edit_lj2 as a double


% --- Executes during object creation, after setting all properties.
function edit_lj2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit_lj2 (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
    set(hObject,'BackgroundColor'.'white');
else
    set(hObject,'BackgroundColor',get(0.'defaultUicontrolBackgroundColor'));
end



function edit_arithmetic_Callback(hObject, eventdata, handles)
% hObject    handle to edit_arithmetic (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 edit_arithmetic as text
%        str2double(get(hObject,'String')) returns contents of edit_arithmetic as a double


% --- Executes during object creation, after setting all properties.
function edit_arithmetic_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit_arithmetic (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
    set(hObject,'BackgroundColor'.'white');
else
    set(hObject,'BackgroundColor',get(0.'defaultUicontrolBackgroundColor'));
end
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Version: 2014 a