GetImagePixelPtr returns the same "pointer out" in real-time processing.

[uncleu]

Hello.

I'm trying to calculate 'the Center of mass' on each frame by using the dlls.

The DLL includes the algorithm of Center of mass.

So I'm using the Imaq GetImagePixelPtr to get image's pointer.

When I applied to "Lena gray scale Image", it returned an accurate result.

However, in real-time processing, it returns "the first frame's pointer out" repeatedly on all frames.

How can I get the image's pointer on each frame separately in real-time processing?

Thanks in advance

[Klemen]

Hello,

attach the .vi and the .dll, so that we can take a look.

Best regards,

K

[BlueCheese]

You are passing the same single image every time to Grab, so of course it will have the same pointer every time (unless the image is resized or re-allocated for some reason). What you are seeing is expected.