資源簡介
完成了指紋的預處理 特征提取 指紋匹配 自帶指紋數據庫

代碼片段和文件信息
function?[vectornumber]=extraction(tempnumber)
%?minutia?extraction
%?temp=imread(‘1.bmp‘);
%?figure(1)
%?imshow(temp);
[mn]=size(temp);
newimage=zeros(mn);%?minutia?map
%?0-black255-white
%?detect?the?points?in?the?eight?neighborhood
%?focus?on?the?center?where?the?image?is?clear
%?count?the?minutiae
minutia=0;
for?i=2+10:m-1-10
????for?j=2+10:n-1-10
????????count=0;
????????if?temp(ij)==1
????????????for?p=1:3
????????????????for?q=1:3
????????????????????if?temp(i-2+pj-2+q)==1
????????????????????????count=count+1;
????????????????????end
????????????????end
????????????end
????????????if?count==2
????????????????newimage(ij)=1;%?the?end?point
????????????????minutia=minutia+1;
????????????????pointvect(minutia:)=[1ij];
????????????elseif?count==4
????????????????newimage(ij)=1;%?the?bifurcate?point
????????????????minutia=minutia+1;
????????????????pointvect(minutia:)=[2ij];
????????????end
????????end
????end
end
%?figure(2)
%?imshow(newimage)
%?calculate?the?weight?of?the?minutiae?by?the?function?nearest
y=nearest(pointvect);
%?sort?the?pointvect?in?decreasing?order?and?extract?the?first?20?as?feature????????
[junk?rindices]?=?sort(-1*y(:4));
vector=y(rindices(1:number):);
number=minutia;
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
?????文件??????90512??2000-08-25?17:30??databa
............此處省略83個文件信息
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