matlab.zip_MATLAB 杞︾墝璇嗗埆_matlab 车牌识别_车牌 MATLAB_车牌识别 matlab

I=imread('Car.jpg'); [y,x,z]=size(I); myI=double(I); %%%%%%%%%%% RGB to HSI %%%%%%%% tic % 测定算法执行的时间，开始计时 %%%%%%%%%%% 统计分析 %%%%%%%%%%%%%%% %%%%%%%% Y 方向 %%%%%%%%%% Blue_y=zeros(y,1); for i=1:y for j=1:x if((myI(i,j,1)<=30)&&((myI(i,j,2)<=62)&&(myI(i,j,2)>=51))&&((myI(i,j,3)<=142)&&(myI(i,j,3)>=119))) % 蓝色RGB的灰度范围 Blue_y(i,1)= Blue_y(i,1)+1; % 蓝色象素点统计 end end end [temp MaxY]=max(Blue_y); % Y方向车牌区域确定 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,:,:); %%%%%%%% X 方向 %%%%%%%%%% Blue_x=zeros(1,x); % 进一步确定X方向的车牌区域 for j=1:x for i=PY1:PY2 if((myI(i,j,1)<=30)&&((myI(i,j,2)<=62)&&(myI(i,j,2)>=51))&&((myI(i,j,3)<=142)&&(myI(i,j,3)>=119))) Blue_x(1,j)= Blue_x(1,j)+1; end end end PX1=1; 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=PX1-2; % 对车牌区域的修正 PX2=PX2+2; Plate=I(PY1:PY2,PX1-2:PX2,:); t=toc % 读取计时 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% figure,imshow(I); figure,plot(Blue_y);grid figure,plot(Blue_x);grid figure,imshow(IY); figure,imshow(Plate); %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%文字识别子函数 function [Numeral]=Recognition(StrokeTop,StrokeLeft,StrokeRight,StrokeBottom,Comp) % 采用四边的轮廓结构特征和笔划统计（仅针对 0 和 8）识别残缺数字 % Comp 是用于识别 0和8 的底部补充信息 StrT='T'; StrL='T'; StrR='T'; StrB='T'; RStr='T'; % 用于保存识别出的数字 [temp XT]=size(StrokeTop); [temp XL]=size(StrokeLeft); [temp XR]=size(StrokeRight); %[temp XB]=size(StrokeBottom); for Ti=2:XT if (StrokeTop(Ti)=='C') if ((XL==2)&&(XR==2)) if ((Comp>=3)||((StrokeBottom(2)~='C')&&(StrokeLeft(2)=='C')&&(StrokeRight(2)=='C'))) RStr='8'; else RStr='0'; end else if ((StrokeLeft(XL)=='L')&&(StrokeLeft(XL-1)=='P')&&(StrokeLeft(2)~='C')) RStr='2'; else if ((StrokeLeft(2)=='C')&&(XL>=3)&&(StrokeLeft(3)=='P')) RStr='9'; else if (XL>2) for Li=2:XL if (StrokeLeft(Li)=='P') RStr='3'; end end else if (XL==2) for Ri=2:XR-1 if (StrokeRight(Ri)=='P') RStr='6'; end end end end end end end else if (StrokeTop(Ti)=='V') % Top if ((XR==2)&&(StrokeRight(2)=='C')) % 数字 3 右端只有一个结构 RStr='3'; else if ((XR==2)&&((StrokeLeft(2)=='P')||(StrokeLeft(3)=='P')||(StrokeLeft(XL)=='V'))) RStr='7'; else if (XR>2) for Ri=2:XR if (StrokeRight(Ri)=='P') RStr='5'; end end end end end else if ((StrokeTop(Ti)=='L')) % Top if ((StrokeRight(XR)=='V')&&(XR<=2)) RStr='4'; else for Ri=2:XR if ((StrokeRight(Ri)=='L')||(StrokeRight(Ri)=='C')) RStr='6'; end end end end end %对应于'V' end % 对应于'C' end % 对应于第一个 for 循环 Numeral=RStr;