www.gusucode.com > 基于模版的车辆匹配源码程序 > 基于模版的车辆匹配源码程序/Phase Based Template Matching/Phase Based Template Matching/Phase_base_gui.m
function varargout = Phase_base_gui(varargin)
% PHASE BASED TEMPLATE MATCHING
% Phase information is used for matching the input imagery with the
% template. Both the images are filtered with canny edge detector. The timing
% efficiency is introduced by implementing skiping steps while doing
% correlation.
%The advantage of Phase based correlation technique is that it
% shows good response against shift/brightness variation and noise addition
% i.e. salt & pepper/Gaussian noise. Templates includes small portion of cropped
% from input imagery with gaussian noise introduced in them.
%Programmed by usman qayyum
%mrusmanqayyum@yahoo.com October 08,2008
% Edit the above text to modify the response to help Phase_base_gui
% Last Modified by GUIDE v2.5 08-Oct-2008 14:30:24
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @Phase_base_gui_OpeningFcn, ...
'gui_OutputFcn', @Phase_base_gui_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
global img1;
global imgt;
% End initialization code - DO NOT EDIT
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% --- 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)
global img1;
[filename, pathname] = uigetfile('*.jpg', 'Pick Input image');
img1=imread(strcat(pathname,filename));
figure,imshow(img1);
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% --- 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)
global imgt;
[filename, pathname] = uigetfile('*.jpg', 'Pick template image');
imgt=imread(strcat(pathname,filename));
figure,imshow(imgt);
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% --- 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)
global img1;
global imgt;
lapping_dist=10; %block overlapping distance in_actual_it_should be equal to 1
%initialization of the variables
maxx=double(0);
row=1;
col=1;
tic
if(isrgb(img1))
img1_gray=edge(rgb2gray(img1),'canny');
imgisrgb=1;
else
img1_gray=edge((img1),'canny');
imgisrgb=0;
end
if(isrgb(imgt))
imgt_gray=edge(rgb2gray(imgt),'canny');
else
imgt_gray=edge((imgt),'canny');
end
row_template=size(imgt,1);
col_template=size(imgt,2);
row_img=size(img1_gray,1);
col_img=size(img1_gray,2);
for i=1:lapping_dist:row_img-row_template
for j=1:lapping_dist:col_img-col_template
l=i; %temp variables are used to avoid the over writing
m=j;
img_temp=fft2(double(img1_gray(l:l+row_template-1,m:m+col_template-1)));
img_temp1=conj(fft2(double(imgt_gray(1:row_template,1:col_template))));
res_corr(i,j)= max(max(abs(ifft2(((img_temp.*img_temp1)./((abs(img_temp .*img_temp1)+.1)))))));
end
end
[row,col]=find(res_corr==max(max(res_corr))); %coordinates finding where the peak of the correlation has been found
%figure,imshow( res_corr),title 'Correlation Surface'
figure,imshow(img1),title 'Target Matched image'
rectangle('position',[col row 45 45],'LineWidth',2); %a certain offset can be found due to skipping step introduced for time efficient correlation
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% --- Executes just before Phase_base_gui is made visible.
function Phase_base_gui_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 Phase_base_gui (see VARARGIN)
% Choose default command line output for Phase_base_gui
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes Phase_base_gui wait for user response (see UIRESUME)
% uiwait(handles.figure1);
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% --- Outputs from this function are returned to the command line.
function varargout = Phase_base_gui_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;
%Programmed by usman qayyum
%mrusmanqayyum@yahoo.com October 08,2008