MATLAB Examples

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


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

% Choose default command line output for main
handles.output = hObject;
ah=axes('unit','normalized','position',[0 0 1 1]);
bg=imread('Files\1.jpg'); imagesc(bg);
set(ah,'handlevisibility','off','visible','off');
uistack(ah,'bottom');
% Update handles structure
guidata(hObject, handles);

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


% --- Outputs from this function are returned to the command line.
function varargout = main_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 Input.
function Input_Callback(hObject, eventdata, handles)
global vfilename;
global vpathname;
global nFrames;
global vi;
global k
delete('frames\*.jpg');
[ vfilename, vpathname ] = uigetfile( 'dataset\*.avi', 'Select an video' );
I=mmreader(strcat( vpathname, vfilename ));
nFrames = I.numberofFrames;
vidHeight =  I.Height;
vidWidth =  I.Width;
mov(1:nFrames) = ...
    struct('cdata', zeros(vidHeight, vidWidth, 3, 'uint8'),...
           'colormap', []);
for k = 1: nFrames
    mov(k).cdata = read( I, k);
   mov(k).cdata = imresize(mov(k).cdata,[256,256]);
    imwrite(mov(k).cdata,['Frames\',num2str(k),'.jpg']);
end
implay([vpathname vfilename]);
% hObject    handle to Input (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 frameconversion.
function frameconversion_Callback(hObject, eventdata, handles)
for I = 1:50
    im=imread(['Frames\',num2str(I),'.jpg']);
    figure(1),subplot(5,10,I),imshow(im);
    axis off;
 end;
% hObject    handle to frameconversion (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 Preprocessing.
function Preprocessing_Callback(hObject, eventdata, handles)
global nFrames
for i=1:nFrames
    img=imread(['Frames\',num2str(i),'.jpg']);
    R=img(:,:,1);
    G=img(:,:,2);
    B=img(:,:,3);
    pr=medfilt2(R);
    pg=medfilt2(G);
    pb=medfilt2(B);
    pre=cat(3,pr,pg,pb);
    axes(handles.axes1);
    imshow(pre);
    title('Preprocessed Frames','fontsize',14,'fontname','Times New Roman','color','White');
    axis off;
end


% --- Executes on button press in Cornerdetection.
function Cornerdetection_Callback(hObject, eventdata, handles)
% hObject    handle to Cornerdetection (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global nFrames
for i=1:5
img=imread(['Frames\',num2str(i),'.jpg']);
img1gr=rgb2gray(img);
img1gr=imresize(img1gr,[256,256]);
SwitchWaitbars = 'on';
NOfWindows = 4; % near each FP will be taken NOfWindows^2 of windows of size 4x4
TypeOfCornerDetector = 'HarmonicMean';
TypeOfNBHOOD = 'const';
NBHOOD = ones(3);
BorderDistance = 4*NOfWindows;
ThreshType = 'const';
HarrisThresh = 5;
k = 0.055;
Dilate = 'no';
radius = 10;
sigma_nmbr = 9;
dispPlaces = 5;
[ HrLPoints1 ] = harrislpls( img1gr, TypeOfNBHOOD, NBHOOD, TypeOfCornerDetector, BorderDistance, ThreshType, HarrisThresh, k, Dilate, radius, sigma_nmbr, dispPlaces, SwitchWaitbars );
axes(handles.axes1)
imshow(img1gr,[]), hold on
axis off;
showellipsefeatures(HrLPoints1,[1 1 0]);
end
main1