in data acquisition start and extract data should be inside the loop or outside

i have ni DAQ card , time consumed by triggering(start(Ai)) and extracting(getdata(ai)) is too much , how can i reduce it ??

whether data acquisition will consider all the existing pixels if i write those codes outside the for loop which is used for addressing the pixels ?

in case i write those code outside the loop the time taken to execute is very less , so which among(inside or outside the loop)is the wright choice .

Answer 1

[Sachin Ganjare]

Rfere link below:

http://www.mathworks.com/matlabcentral/newsreader/view_thread/261808

Hope it helps!!