Plotting centroid values

Hey Guys,

I find the centroid values in an image using the regionprops command. I am able to plot the centroids on the image as well. Could anyone tell me how I can include the centroid values beside the plot. i.e. if the centroid of my image is at (3,3), i want to plot the centroid and display the value along with it. I am able to do the former and I need help with the latter.

Nancy

Answer 1

[Paulo Silva]

Advanced maneuvers with regionprops

[Nancy]

Thanks Paulo. But I couldnt find the answer to my problem in this.

[Paulo Silva]

can you explain better what do you want? 'centroid values besides the plot'

[Nancy]

Say in a figure, a point G denotes the centroid. I know the value of the centroid to be (3,3). I want this value to be displayed near the point G on my figure.

[Paulo Silva]

In the link that I posted you have

x = s(k).Centroid(1);

y = s(k).Centroid(2);

text(x, y, sprintf('%d', s(k).ClassNumber), 'Color', 'r', ...

'FontWeight', 'bold');

Instead of that code do

x = s(k).Centroid(1);

y = s(k).Centroid(2);

text(x+d,y,' \leftarrow G','FontSize',18) %where d is the distance from the point

If you want to have many centroids at the same vertical point just define a constant x+d and they will be all aligned