MATLAB车牌识别[算法对比，GUI],基于matlab的车牌识别算法,matlab

function varargout = chepaishibiegui(varargin) % CHEPAISHIBIEGUI MATLAB code for chepaishibiegui.fig % CHEPAISHIBIEGUI, by itself, creates a new CHEPAISHIBIEGUI or raises the existing % singleton*. % % H = CHEPAISHIBIEGUI returns the handle to a new CHEPAISHIBIEGUI or the handle to % the existing singleton*. % % CHEPAISHIBIEGUI('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in CHEPAISHIBIEGUI.M with the given input arguments. % % CHEPAISHIBIEGUI('Property','Value',...) creates a new CHEPAISHIBIEGUI or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before chepaishibiegui_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to chepaishibiegui_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 chepaishibiegui % Last Modified by GUIDE v2.5 01-12-2020 17:50:29 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @chepaishibiegui_OpeningFcn, ... 'gui_OutputFcn', @chepaishibiegui_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 chepaishibiegui is made visible. function chepaishibiegui_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 chepaishibiegui (see VARARGIN) % Choose default command line output for chepaishibiegui handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes chepaishibiegui wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = chepaishibiegui_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) [fname,pname,index] = uigetfile({'*.jpg';'*.bmp'},'选择图片'); if index str = [pname fname]; c = imread(str); axes(handles.chepai); imshow(c); I = c; title('测试图像'); I1=rgb2gray(I); I2=edge(I1,'roberts',0.18,'both'); se=[1;1;1]; I3=imerode(I2,se); se=strel('rectangle',[25,25]); I4=imclose(I3,se); [n1, n2] = size(I4); I4(1:round(n1/3), 1:n2) = 0; r = floor(n1/10); c = floor(n2/10); I4(1:r,:)=0; I4((9*r):n1,:)=0; I4(:,1:c)=0; I4(:,(c*9):n2)=0; I5=bwareaopen(I4,200); [y,x,z]=size(I5); myI = double(I5); tic Blue_y=zeros(y,1); for i=1:y for j=1:x if(myI(i,j,1)==1) Blue_y(i,1)=Blue_y(i,1)+1; end end end [temp MaxY] = max(Blue_y); PY1=MaxY; while((Blue_y(PY1,1)>=5)&&(PY1>1)) PY1=PY1-1; end PY2=MaxY; while ((Blue_y(PY2,1)>=5)&&(PY2<y)) PY2=PY2+1; end IY=I(PY1:PY2,:,:); % figure,imshow(IY); Blue_x=zeros(1,x); for j=1:x for i=PY1:PY2 if(myI(i,j,1)==1) Blue_x(1,j)=Blue_x(1,j)+1; end end end % [tempx MaxX] = max(Blue_x); PX1=1; [Irow,Icol,Idisanwei] = size(I); while((Blue_x(1,PX1)<3)&&(PX1<x)) PX1=PX1+1; end PX2=x; while ((Blue_x(1,PX2)<3)&&(PX2>PX1)) PX2=PX2-1; end PX1=PX1-1; PX2=PX2; % dw=I(PY1:(PY2-8),PX1:PX2,:); dw=I((PY1):(PY2),PX1:PX2,:); t=toc; if ((PX2-PX1)/(PY2-PY1))>4.6 PX1=1; [Irow,Icol,Idisanwei] = size(I); while((Blue_x(1,PX1)<11)&&(PX1<x)) PX1=PX1+1; end PX2=x; while ((Blue_x(1,PX2)<11)&&(PX2>PX1)) PX2=PX2-1; end PX1=PX1-1; PX2=PX2; dw=I((PY1):(PY2),PX1:PX2,:); end imwrite(dw,'dw.jpg'); a=imread('dw.jpg'); axes(handles.chepaijieguo) imshow(a) title('车牌分割结果') b=rgb2gray(a); imwrite(b,'gray licence plate.jpg'); g_max=double(max(max(b))); g_min=double(min(min(b))); T=round(g_max-(g_max-g_min)/3); [m,n]=size(b); d=(double(b)>=T); imwrite(d,'binary licence plate.jpg'); h=fspecial('average',3); d=im2bw(round(filter2(h,d))); imwrite(d,'after average licence plate.jpg'); se=eye(2); [m,n]=size(d); if bwarea(d)/m/n>=0.365 d=imerode(d,se); elseif bwarea(d)/m/n<=0.235 d=imdilate(d,se); end imwrite(d,'expansion or corrosion the licence plate.jpg'); [dw1,dw2,dw3]=size(dw); fanwei = round(0.0026*dw1*dw2); d=bwareaopen(d,fanwei); d=qiege(d); [m,n]=size(d); if (n/m)<4 row = m-(n/(4.1)); d = d(round(row):m,1:n); end k1=1; k2=1; s=sum(d); j=1; while j~=n while s(j)==0 j=j+1; end k1=j; while s(j)~=0&&j<=n-1 j=j+1; end k2=j-1;% if k2-k1>=round(n/6.5)% [val,num]=min(sum(d(:,[k1+5:k2-5])));% d(:,k1+num+5)=0; % end end % 再切割 d=qiege(d); y1=10;y2=0.25;flag=0;word1=[]; while flag==0 [m,n]=size(d); left=1;wide=0; while sum(d(:,wide+1))~=0 wide=wide+1; end if (wide<5)&&(sum(d(:,wide+1))<(10/m)) d(:,[1:wide])=0; d=qiege(d); else temp=qiege(imcrop(d,[1 1 wide m])); [m,n]=size(temp); all=sum(sum(temp)); two_thirds=sum(sum(temp([round(m/3):2*round(m/3)],:))); if two_thirds/all>y2 flag=1;word1=temp; % WORD 1 end d(:,[1:wide])=0;d=qiege(d); end end [word2,d]=getword(d); [word2row,word2col] = size(word2); whitesizeofword2 = round(word2row*word2col/12)+1; word2=bwareaopen(word2,whitesizeofword2); word2=qiege(word2); % 分割出第三个字符 [word3,d]=getword(d); % 分割出第四个字符 [word4,d]=getword(d); % 分割出第五个字符 [word5,d]=getword(d); % 分割出第六个字符 [word6,d]=getword(d); [word6row,word6col] = size(word6); whitesizeofword6 = round(word6row*word6col/12)+1; word6=bwareaopen(word6,whitesizeofword6); word6=qiege(word6); % 分割出第七个字符 [word7,d]=getword(d); [m,n]=size(word1); word1=imresize(word1,[32 16]); word2=wordprocess(word2); word3=wordprocess(word3); word4=wordprocess(word4); word5=wordprocess(word5); word6=wordprocess(word6); word7=wordprocess(word7); axes(handles.zifu1); imshow(word1); title('1') axes(handles.zifu2);