how to get coordinate in an image

I have an image that has two centroid. I do not know how to display the coordinate values of each centroid is in the image. hope can help me. thanks

Answer 1

[Matt J]

 regionprops(...,'Centroid')

[mantong]

no Matt J..what i mean i want to plot two coordinate value in each centroid in an image. can u help me..thank u..

[mantong]

http://postimage.org/image/kp2fs8eiv/

[Matt J]

use the SCATTER command, in conjunction with HOLD.

[Image Analyst]

You can use plot() or scatter(). Have you seen my BlobsDemo: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 It finds centroids and plots them over the objects.