how to re-code this line of code to accelerate the program?

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Guanghao Chen
Guanghao Chen on 8 Apr 2015
ds=imv(xa:xa+ks-1,ya:ya+ks-1);
This line is code inside two layers of loops and by profile analysis, it costs a great portion of the total time. How to rewrite this line to accelerate? Thank you!

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