MATLAB: Index exceeds matrix dimensions.HELP!

Question

Hello,

Im a new user of matlab. Im making a project for card detection, and I need average centroid of all objects in a binary image. I am using a function for this calculation and i get the error that Index exceeds matrix dimensions.

Here is the function

function [averageDist, averageCentroid] = averageCentroidDistance(centroids) 
      averageCentroid = mean(centroids);
      x = averageCentroid(1);
      y = averageCentroid(2);
      hold on
      totalDist = 0;
      for i = 1:size(centroids, 1)
          X = [y, x; centroids(i,:)];
          d = pdist(X,'euclidean');
          totalDist = totalDist + d;
      end
      averageDist = totalDist / size(centroids, 1);
end

In the error it says that y exceeds the matrix dimensions.

Answer 1

The data being passed in is a scalar or a vector, not an 2D array. The mean() is only returning a single value.