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str = 'D:\Matlab\sampleone\';
for i = 1:287
    I = imread([str,num2str(i),'.jpg']);
     r1=I(750,200,1);   %Ö¸¶¨ÏñËØµãµÄRÖµ
     g1=I(750,200,2);  %Ö¸¶¨ÏñËØµãµÄGÖµ
     b1=I(750,200,3);  %Ö¸¶¨ÏñËØµãµÄBÖµ
     r2=I(120,200,1);
     g2=I(120,200,2);
     b2=I(120,200,3);
     r3=I(140,200,1);
     g3=I(140,200,2);
     b3=I(140,200,3);
     r4=I(160,200,1);
     g4=I(160,200,2);
     b4=I(160,200,3);
    A=[r1 g1 b1;r2 g2 b2;r3 g3 b3;r4 g4 b4];
  b(:,:,i)=mean(A);   %ÇóËĸöµãµÄƽ¾ùÖµÖ®ºó¸³Öµ¸øb
end
save('D:\Matlab\chuli1.mat','b'); %±£´æb

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