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

2017 4 12
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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

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James Tursa
James Tursa 2017-4-12

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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)];

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