IMAQ Find Circles

[Veena]

On what basis does IMAQ Find Circles classify the circles found in an image.I mean the numbering that is done and the data that is outputted accordingly.

I have an image consisting of (m x n) circles distributed almost uniformly I want the output of the above function when applied to this image to be ordered from top left circle to the bottom right circle (from left to right). Since I need the data to be compared with another set of such circle images and hence find the shifts/displacement.
How can this be done?

Right now when I apply this function I get the numbering at random at some places and is different for 2 images.I want the data of the first topmost left circle to be compared with that of the topmost left circle of the other image.

Than
xs..
Veena.

[zio]

If you have a good idea of where the circles should be I suggest dividing the original image into a grid of smaller images. Smaller images are easier to handle, and you have more control over what you are searching for. You can also do this "virtually" by defining an array of small ROIs (maybe overlapping slightly) and iterating the search over the array. This way you should know exactly which circle you are talking about when comparing measurements.
ciao,
Ziozio

[Veena]

Hi zio,
Could you suggest me a sample example for this?
Thanxs,
Veena