MATLAB: Hi, I am a beginner in MATLAB and wanted to count the number of neighbors with value 1 for each pixel which included value one in binary image… The target is to point out the pixels which are included value 1and their neighbor with 1 is >2

binary imagefinding the intersection in the vessle

A= [ 0 0 0 0; 0 1 1 0 ; 0 0 1 0;0 0 0 0 ];
% BW= imread('19-test-bin.tif');
% CC = bwconncomp(BW,4)
%fh=fopen('result1.txt', 'a+');
nrow=3;
ncol=3;
n=0;
i=2; j=2;
 for i = 1:nrow
    for j = 1:ncol
      fprintf('Here1!!!\n')
       if (A(i,j) == 1) && ( i-1>0) && (j-1>0)
         fprintf('Here2!!!!\n')
           if A(i-1,j-1)==1 
               n=n+1;
             if  A(i-1,j)==1;
               n=n+1;
                fprintf('nei(1)= %d\n',n)   
                 if A(i-1,j+1)==1;
                     n=n+1;
                    fprintf('Here4!!!\n')    
                     if  A(i,j-1)==1;
                          n = n+1;
                           if A(i,j+1)==1;
                               n= n+1;
                                if A(i+1,j-1)==1;
                                       n=n+1;
                                     if A(i+1,j)==1;
                                          n=n+1;
                                         if A(i+1,j+1)==1;
                                              n=n+1;
               else
               fprintf('There is not any neighbor!!!!\n')
                                         end
                                     end
                                end
                           end
                       end
                   end
               end   
             end
         end
      end
   end
   fprintf( '%d  ',n );

Best Answer

The easiest way to count neighbouring pixels is to conv2() with [1 1 1; 1 0 1; 1 1 1] .
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