How can I substract 2 pixels form the same image

I would like to know which library should I use from labview 7 and/or imaq vision so that I can substract the COORDINATES of 2 PIXELS from the SAME image.
THANKS !!!

Hello nobuto,
never worked with IMAQ by myself, but a collegue did...
He used a function "IMAQ Select Rectangle" to select a ROI (region of interest). You could do so for your 2 pixels. This functions gives you an "IMAQ Rectangle" (a cluster of 5 elements: top, left, right, bottom, rotation). You could uncluster the needed elements and do your subtraction.
Hope this helps.
Best regards,
GerdW
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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How can I substract 2 pixels form the same image

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