clear; S1=imread('0525a.jpg'); figure(1); image(S1); G=0.299*S1(:,:,1)+0.587*S1(:,:,2)+0.114*S1(:,:,3); figure(2); colormap(gray(256)); image(G); for i=1:320; for j=1:240; if G(j,i) >=127 B(j,i)=uint8(1); else B(j,i)=uint8(0); end end end …