Introduction - If you have any usage issues, please Google them yourself
find Avg RGB
s1=imread( 7 img blue.jpg )
vec=reshape(s1,prod(size(s1))/3,3)
R1=sum(vec(:,1))/length(vec(:,1))
G1=sum(vec(:,2))/length(vec(:,2))
B1=sum(vec(:,3))/length(vec(:,3))
RGB=[R1 G1 B1]