How to find the index of a specific point on a bwlabeled image

After you use bwlabel on an image, if you use [x,y] = ginput and find certain points on an image. What code can you use to get the index of that point?

Example: [x,y] = ginput (you get: x = 154.3 244.6 546.2 y = 345.7 120.3 45.0)

Answer 1

[Image Analyst]

What do you mean by index? The linear index? Then use subs2ind(). Or the numerical label of the blob? If you want the label, just do

labelYouPointedTo = labeledImage(round(y), round(x));

[Cynth]

Thank you so much! That worked perfectly!