How to VECTORIZE this code and then convert it into a GPU code ?

During vectorization matlab giving me error for this if condition which contains SHORT CIRCUITED OR conditions :- if I(m,n,2)<120||I(m,n,1)>155||I(m,n,3)>160

Answer 1

[James Tursa]

Try this:

x = I(:,:,2)<120 | I(:,:,1)>155 | I(:,:,3)>160;
gsc = 0.2989*I(:,:,1) + 0.5870*I(:,:,2) + 0.1140*I(:,:,3);
I([x,x,x]) = [gsc(x),gsc(x),gsc(x)];

[Tanmay Virnodkar]

It Worked...Thank You ...