图像识别基于匹配滤波器实现数字验证码识别附matlab代码

clear; clc; close all yuantu=imread('60.jpg');%读取验证码 huid=rgb2gray(yuantu);%灰度化 %二值化 huid(huid>140)=255; %大于140白色，小于140黑色 huid(huid<140)=0; %标准数字像素点 bz=zeros(12,9,10); bz1=zeros(12,9); jieguo=zeros(1,4); %0 bz(:,:,1)=[1 1 0 0 0 1 1 1 1; 1 0 0 0 0 0 1 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 0 0 0 0 0 1 1 1; 1 1 0 0 0 1 1 1 1]; %1 bz(:,:,2)=[1 1 1 0 0 1 1 1 1; 1 1 0 0 0 1 1 1 1; 1 0 0 0 0 1 1 1 1; 0 0 0 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1;]; %2 bz(:,:,3)=[1 1 0 0 0 1 1 1 1; 1 0 0 0 0 0 1 1 1; 0 0 0 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 1 1 1 1 0 0 1 1; 1 1 1 1 1 0 0 1 1; 1 1 1 0 0 0 1 1 1; 1 1 0 0 0 1 1 1 1; 1 0 0 0 1 1 1 1 1; 1 0 0 1 1 1 1 1 1; 0 0 0 0 0 0 0 1 1; 0 0 0 0 0 0 0 1 1]; %3 bz(:,:,4)=[1 1 0 0 0 1 1 1 1; 1 0 0 0 0 0 1 1 1; 0 0 1 1 1 0 0 1 1; 1 1 1 1 1 0 0 1 1; 1 1 1 0 0 0 1 1 1; 1 1 1 0 0 0 0 1 1; 1 1 1 1 1 0 0 1 1; 1 1 1 1 1 0 0 1 1; 0 1 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 0 0 0 0 0 1 1 1; 1 1 0 0 0 1 1 1 1]; %4 bz(:,:,5)=[1 1 1 1 1 0 0 1 1; 1 1 1 1 0 0 0 1 1; 1 1 1 1 0 0 0 1 1; 1 1 1 0 0 0 0 1 1; 1 1 0 0 0 0 0 1 1; 1 0 0 0 1 0 0 1 1; 1 0 0 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 0 0 0 0 0 0 1; 0 0 0 0 0 0 0 0 1; 1 1 1 1 1 0 0 1 1; 1 1 1 1 1 0 0 1 1]; %5 bz(:,:,6)=[1 1 0 0 0 0 0 1 1; 1 0 0 0 0 0 0 1 1; 0 0 0 1 1 1 1 1 1; 0 0 0 1 1 1 1 1 1; 0 0 0 0 0 1 1 1 1; 1 0 0 0 0 0 1 1 1; 1 1 1 1 1 0 0 1 1; 1 1 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 0 1 1 0 0 1 1; 1 0 0 0 0 0 1 1 1; 1 1 0 0 0 1 1 1 1]; %6 bz(:,:,7)=[ 1 1 0 0 0 1 1 1 1; 1 0 0 0 0 0 1 1 1; 1 0 1 1 1 0 0 1 1; 0 0 1 1 1 1 1 1 1; 0 0 0 0 0 0 1 1 1; 0 0 0 0 0 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 0 0 0 0 0 1 1 1; 1 1 0 0 0 1 1 1 1]; %7 bz(:,:,8)=[ 0 0 0 0 0 0 0 1 1; 0 0 0 0 0 0 0 1 1; 1 1 1 1 0 0 0 1 1; 1 1 1 1 0 0 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 0 1 1 1 1; 1 1 1 0 1 1 1 1 1; 1 1 0 0 1 1 1 1 1; 1 1 0 0 1 1 1 1 1; 1 1 0 0 1 1 1 1 1; 1 1 0 0 1 1 1 1 1; 1 1 0 0 1 1 1 1 1]; %8 bz(:,:,9)=[ 1 1 0 0 0 1 1 1 1; 1 0 0 0 0 0 1 1 1; 0 0 0 0 0 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 0 0 0 0 0 1 1 1; 1 0 0 0 0 0 1 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 0 0 0 0 0 1 1 1; 1 1 0 0 0 1 1 1 1]; %9 bz(:,:,10)=[1 1 0 0 0 1 1 1 1; 1 0 0 0 0 0 1 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 0 0 0 0 0 0 1 1; 1 1 0 0 0 0 0 1 1; 0 1 1 1 1 0 0 1 1; 0 0 1 1 1 0 0 1 1; 1 0 0 0 0 0 1 1 1; 1 1 0 0 0 1 1 1 1]; [m,n]=size(huid); [m0,n0]=size(bz1); xg=zeros(m-m0+1,n-n0+1,10); aaa=zeros(4,10); %计算相关性 for kk=1:10 bz1=bz(:,:,kk); vec_sub=double(bz1(:)); norm_sub=norm(vec_sub); for i=1:m-m0+1 for j=1:n-n0+1 sm=huid(i:i+m0-1,j:j+n0-1); vv=double(sm(:)); xg(i,j,kk)=vv'