hsv_f?=?rgb2hsv(g4); H?=?hsv_f(:,:,1)*255; S?=?hsv_f(:,:,2)*255; V?=?hsv_f(:,:,3)*255; [y,x,z]=size(g4); Red_y=zeros(y,1); Green_y=zeros(y,1); Yellow_y=zeros(y,1); for?i=1:y for?j=1:x if(((H(i,j)>=0)&&(H(i,j)50)&&(S(i,j)>30)) Red_y(i,1)=?Red_y(i,1)+1; elseif(((H(i,j)>=105)&&(H(i,j)50)&&(S(i,j)>30))?Green_y(i,1)=?Green_y(i,1)+1; elseif(((H(i,j)>=45)&&(H(i,j,1)50)&&(S(i,j)>30))?Yellow_y(i,1)=?Yellow_y(i,1)+1; end end end Max_Red_y=max(Red_y); Max_Green_y=max(Green_y); Max_Yellow_y=max(Yellow_y); if?(Max_Red_y>Max_Green_y)&&(Max_Red_y>Max_Yellow_y) disp('紅燈'); else?if?(Max_Green_y>Max_Red_y)&&(Max_Green_y>Max_Yellow_y) 6/7頁 disp('綠燈'); else?if(Max_Yellow_y>Max_Red_y)&&(Max_Yellow_y>Max_Green_y)?disp('黃燈'); end end End