How can I draw the intensity in real time of a picture in time real (imaq 1394)?

I have a firewire camera.

I hooked up my camera to my pc with labview and now I display image in real time. How can I draw the intensity of a region dependent on time?
Y - intensity
X - time... I would watch the variaions real-time intensity...

Thanks in advance

The light meter example is pretty much what you want to do. It is located here:

\National Instruments\\examples\Vision\2. Functions\Light Meter\Light meter Example.llb\Light meter Example.vi

In the example, the x axis are the number of iteration, but it is easy to modify to use a graphic instead of a graph and chart the time instead.

Hope that helps.

Christophe

Tags: NI Hardware

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