[x,y]=size(bw);jds=zeros(1,9);
i=5;j5=0;
    count=0;%交點個數
        for j=1:y
            if(bw(i,j)==0)
                count=count+1;
            elseif(count>=1)
                j5=j5+1;
                count=0;
            end
        end
for nn=1:3
    if nn==1,i=2*x/6;end
    if nn==2,i=3*x/6; end
    if nn==3,i=4*x/6;end
count=0;                    %交點個數
    for j=1:y
        if(bw(i,j)==0)
            count=count+1;
        elseif(count>=1)
                jds(nn)=jds(nn)+1;
                count=0;
        end
    end
end
for nn=1:3
    if nn==1,i=5*y/12;end
    if nn==2,i=6*y/12;end
    if nn==3,i=7*y/12;end
    count=0;                    %交點個數
    for j=1:x
        if(bw(j,i)==0)
            count=count+1;
        elseif(count>=1)
            jds(nn+3)=jds(nn+3)+1;
            count=0;
        end
    end
end
    count=0;                    %交點個數
    for j=1:x
        if(bw(j,j)==0)
            count=count+1;
        elseif(count>=1)
            jds(7)=jds(7)+1;
            count=0;
        end
    end
count=0;                        %交點個數
for j=0:(y-1)
    if(bw(1+j,y-j)==0)
        count=count+1;
    elseif(count>=1)
        jds(8)=jds(8)+1;
        count=0;
    end
end
he=0;zb1=zeros(1,10);zb2=zeros(1,10);
for i=1:x
    for j=1:y
        if bw(i,j)==0
            if((i==1)|(j==1)),c1=1;else c1=bw(i-1,j-1);end
            if(i==1),c2=1;else c2=bw(i-1,j);end
            if((i==1)|(j==y)),c3=1;else c3=bw(i-1,j+1);end
            if(j==1),c4=1;else c4=bw(i,j-1);end
            if(j==y),c5=1;else c5=bw(i,j+1);end
            if((i==x)|(j==1)),c6=1;else c6=bw(i+1,j-1);end
            if(i==x),c7=1;else c7=bw(i+1,j);end
            if((i==x)|(j==y)),c8=1;else c8=bw(i+1,j+1);end
            he=c1+c2+c3+c4+c5+c6+c7+c8;
            if he==7,jds(9)=jds(9)+1;zb1(jds(9))=i;zb2(jds(9))=j;end    %求端點數
        end
    end
end
    n1=2;
    d=zeros(n1,10);
    zsk=zeros(n1,10,9);             %知識庫
%1 2 3 4 5 6 7 8端點數
zsk(1,1,1:9)=[2.00 2.00 2.00 2.00 2.00 2.05 1.10 1.45 0.15];
zsk(1,2,1:9)=[1.00 1.00 1.00 0.95 1.00 0.80 0.85 1.00 2.10];
zsk(1,3,1:9)=[1.00 1.00 1.10 3.05 2.95 3.00 1.30 1.25 3.15];
zsk(1,4,1:9)=[1.05 1.35 1.00 2.95 3.90 3.65 1.25 0.80 3.20];
zsk(1,5,1:9)=[2.05 2.60 1.05 1.85 2.10 2.35 2.20 1.85 4.00];
zsk(1,6,1:9)=[1.00 1.50 1.00 3.35 3.15 3.10 2.00 1.25 3.55];
zsk(1,7,1:9)=[1.00 1.10 2.10 3.00 3.00 2.55 2.05 1.80 1.25];
zsk(1,8,1:9)=[1.00 1.00 1.00 1.30 1.95 2.00 0.80 1.00 2.95];
zsk(1,9,1:9)=[2.35 2.10 2.00 3.80 3.65 4.05 2.25 2.45 1.05];
zsk(1,10,1:9)=[1.75 1.00 1.00 2.55 3.10 2.55 1.45 1.00 1.20];
zsk(2,1,1:9)=[2.05 2.00 2.00 1.05 1.05 1.10 0.95 1.30 2.05];
zsk(2,2,1:9)=[1.00 1.00 1.00 0.95 1.00 0.80 0.85 1.00 2.10];
zsk(2,3,1:9)=[1.00 1.00 1.45 2.45 2.65 2.55 0.90 2.40 2.15];
zsk(2,4,1:9)=[1.15 2.60 1.30 3.65 3.85 3.55 1.70 1.65 2.05];
zsk(2,5,1:9)=[3.00 2.25 1.10 1.70 1.75 1.75 1.60 2.30 2.15];
zsk(2,6,1:9)=[1.15 1.10 1.00 2.45 1.85 1.15 1.00 2.10 4.45];
zsk(2,7,1:9)=[1.00 1.15 2.60 2.30 2.95 3.05 2.35 1.90 2.45];
zsk(2,8,1:9)=[1.00 1.00 1.00 1.30 1.95 2.00 0.80 1.00 2.95];
zsk(2,9,1:9)=[1.95 2.00 2.00 4.15 3.55 2.45 1.85 1.95 2.05];
zsk(2,10,1:9)=[1.90 1.15 1.00 2.35 3.00 3.25 2.15 1.35 3.20];
for i=1:n1
    for j=1:10
        for k=1:9
            d(i,j)=d(i,j)+(jds(k)-zsk(i,j,k))*(jds(k)-zsk(i,j,k));
        end
    end
end
min=9999;b=0;s=0;
for i=1:n1
        for j=1:10
            if d(i,j)<min,min=d(i,j);b=i;s=j;
            end
        end
end
figure,imshow(bctx);
switch s
case 1
    if(jds(1)==3&jds(2)==3),title('此數字為4');
    else title('此數字為0');
    end
case 2
    if jds(9)>=4,title('此數字為5');
    elseif jds(6)==2,title('此數字為7');
    elseif(jds(9)==2&(zb1(1)-zb1(2))*(zb2(1)-zb2(2))>0),title('此數字為7');
    elseif(jds(9)==3&(zb1(1)-zb1(3))*(zb2(1)-zb2(3))>0),title('此數字為7');
    else title('此數字為1');
end
case 3
    if(b==2&jds(9)==2&(zb1(1)-zb1(2))*(zb2(1)-zb2(2))<0),title('此數字為6');
    elseif(b==2&jds(9)==3&zb1(1)<10&zb1(2)<30),title('此數字為5');
    elseif(b==2&jds(9)==3&abs(zb1(1)-zb1(2))<30&abs(zb2(1)-zb2(2))<25),title('此數字為9');
    elseif(b==2&jds(9)==2&abs(zb1(1)-zb1(2))<10&abs(zb2(1)-zb2(2))<45),title('此數字為8');
elseif(b==1&(jds(4)>3|jds(5)>3|jds(6)>3)&jds(9)>4),title('此數字為5');
elseif(b==1&jds(9)>3&jds(8)>2),title('此數字為5');
elseif(b==1&jds(9)==3&abs(zb1(1)-zb1(2))<20&...
abs(zb2(1)-zb2(2))<20),title('此數字為9');
else title('此數字為2');
end
case 4
if(b==2&jds(1)==2&jds(2)==2&jds(3)==2&...
jds(4)==4&jds(5)==4&jds(6)==4),title('此數字為8');
else title('此數字為3');
end
case 5
if(b==2&jds(9)==2&zb1(1)<30&zb1(2)<30),title('此數字為0');
else title('此數字為4');
end
case 6
if(b==2&jds(9)==4&num0==1),title('此數字為4');
elseif(b==1&jds(4)>4&jds(9)==4),title('此數字為4');
elseif(b==1&jds(5)>4&jds(9)==4),title('此數字為8');
else title('此數字為5');
end
case 7
title('此數字為6');
case 8
if(jds(4)==2&jds(6)==2&jds(5)~=2),title('此數字為2');
elseif jds(6)==4,title('此數字為3');
elseif(jds(9)>2&jds(6)>2),title('此數字為2');
elseif(jds(9)==2&jds(6)==3),title('此數字為6');
else title('此數字為7');
end