Defining coordinate points from an image

[ohagan]

Hi I am trying to define x,y coordinates from an image. I would like to be able to just click a series of points on the image (after displaying it) and have the x,y coordinates recorded from each click automatically. Is there a way to do this?

My end goal is semi automatic segmentation of an image, my idea is to define a variety of points by click on the image and then fitting a spline or something between the points to define the boundaries that I am interested in. I have tried using the data cursor in the picture window to see the x,y coords and then input them manually but this is not the way I want to do it.

Thanks.

 

[ohagan]

Found what Im looking for, the "ginput" function.