停车场+车牌识别(3)

figure(5);plot(0:x1-1,X1),title('列方向像素点灰度值累计和'), xlabel('列值'),ylabel('累计像素量');

Px0=1; Px1=1;

%%%%%%%%%%%分割字符%%%%%%%%%%% for i=1:7

while ((X1(1,Px0)<3)&&(Px0

while (((X1(1,Px1)>=3)&&(Px1

Px1=Px1+1; else break; end end

Z=bw(:,Px0:Px1,:);

switch strcat('Z',num2str(i)) %num2str 把数值转换成字符串 把num2str所指字符串添加到Z结尾处 case 'Z1' PIN0=Z;

b=imresize(Z,[40 20]);imwrite(b,'1.jpg'); %将大小限制为20*40 case 'Z2' PIN1=Z;

b=imresize(Z,[40 20]);imwrite(b,'2.jpg') case 'Z3' PIN2=Z;

b=imresize(Z,[40 20]);imwrite(b,'3.jpg') case 'Z4' PIN3=Z;

b=imresize(Z,[40 20]);imwrite(b,'4.jpg') case 'Z5' PIN4=Z;

b=imresize(Z,[40 20]);imwrite(b,'5.jpg') case 'Z6' PIN5=Z;

b=imresize(Z,[40 20]);imwrite(b,'6.jpg') otherwise PIN6=Z;

b=imresize(Z,[40 20]);imwrite(b,'7.jpg') end Px0=Px1; end

liccode=char(['0':'9' 'A':'Z' '粤浙辽苏豫陕鲁']); %建立自动识别字符代码表

SubBw2=zeros(40,20); l=1; for I=1:7

ii=int2str(I); %将数据I四舍五入变成字符 t=imread([ii,'.jpg']);

SegBw2=bwmorph(im2bw(imresize(t,[40 20],'nearest')),'thin',inf);

%分割后图像细化

a=abs(log(invmoments(SegBw2))); %不变矩 if l==1 %第一位汉字识别 kmin=37; kmax=43;

elseif l==2 %第二位 A~Z 字母识别 kmin=11; kmax=36;

else l>=3 %第三位以后是字母或数字识别 kmin=1; kmax=36; end

for k2=kmin:kmax

fname=strcat('字符模板\\',liccode(k2),'.jpg');

SamBw2 =bwmorph(im2bw(imread(fname)),'thin',inf);

%字模细化

b=abs(log(invmoments(SamBw2))); %不变矩 Error(k2)=sum(abs(a-b)); %求出最小值 end

Error1=Error(kmin:kmax); minerror=min(Error1); findc=find(Error1==minerror);

Code(l*2-1)=liccode(findc(1)+kmin-1); Code(l*2)=' '; l=l+1; end

set(handles.axes3,'HandleVisibility','ON'); axes(handles.axes3);

imshow(dw),title (['车牌号码:', Code],'Color','b');

3、 空位检测

o1=im2bw(imread('1.bmp')); %读取 12345 并变为二值图片 o2=im2bw(imread('2.bmp')); o3=im2bw(imread('3.bmp')); o4=im2bw(imread('4.bmp')); o5=im2bw(imread('5.bmp'));

SE = strel('square',3);

oo1=imdilate(o1,SE)-o1; %将12345进行膨胀 然后减去原图得到背景 oo2=imdilate(o2,SE)-o2; oo3=imdilate(o3,SE)-o3; oo4=imdilate(o4,SE)-o4; oo5=imdilate(o5,SE)-o5;

a=im2bw(handles.img);

temp1=bwhitmiss(a,o1,oo1); %击中函数 temp2=bwhitmiss(a,o2,oo2); temp3=bwhitmiss(a,o3,oo3); temp4=bwhitmiss(a,o4,oo4); temp5=bwhitmiss(a,o5,oo5);

if nonzeros(temp1) a='1号车位'; else

a=' '; end

set(handles.edit2,'string',num2str(a));

if nonzeros(temp2) b='2号车位'; else b=''; end

set(handles.edit4,'string',num2str(b));

if nonzeros(temp3) c='3号车位'; else c=''; end

set(handles.edit5,'string',num2str(c));

if nonzeros(temp4) d='4号车位'; else d=''; end

set(handles.edit6,'string',num2str(d));

if nonzeros(temp5)