How to extract values from array

I am trying to track 3 points of a moving video.First i insert those points and while video playing i want track those points path using x & y values.

num_frame=1; ex_points = {};
while ~isDone(videoFileReader)
      frame = videoFileReader(); 
      [points,validity] = tracker(frame);
      ex_points{num_frame} = points;
      out = insertMarker(frame,points(validity, :),'+','size',10);
     % Where position is for one or more disconnected lines, an M-by-4 matrix, where each four-element vector [x1, y1, x2,y2], describe a line with endpoints, [x1 y1] and [x2 y2].
      videoPlayer(out);
      num_frame = num_frame+1;
end

I able to store the values in to array,

  ex_points{num_frame} = points;

then i try to print one record using below code,

  disp(hist_points{5});

the result was like below,

How can i get values seperately from this reslut??

I need result like each point x and y value seprately,In above image show 3 points at a one time.

Answer 1

[dpb]

disp(hist_points{5}(1));  % for first element in cell 5

Read up in the documentation on cell arrays about dereferencing.

[vimal gayan]

Thanks,It works.