how to store a data in array?

my data is a centroid of 2 pictures.

   clear all;
    background=imread('junc3.png');
    backgray=rgb2gray(background);
    frame1=imread('junc3-01.png');
    backgray2=rgb2gray(frame1);
    Z=imsubtract(backgray2,backgray);
    figure;
    imshow(Z);

    se=strel('ball',5,5);
    dilatedZ=imdilate(Z,se);
    imshow(dilatedZ)

%  centroid
     Zbw = im2bw(dilatedZ,0.1);
     imshow(Zbw)
 cent = regionprops(Zbw,'centroid');

     se=strel('line',11,90);

       imshow(Zbw); hold on;
       for x = 1:2
           plot(cent(x).Centroid(1),cent(x).Centroid(2),'ro');
       end

%     frame2

clear all;
background=imread('junc3.png');
backgray=rgb2gray(background);
frame1=imread('junc3-02.png');
backgray3=rgb2gray(frame1);
Z=imsubtract(backgray3,backgray);
figure;
imshow(Z);

se=strel('ball',5,5);
dilatedZ=imdilate(Z,se);
imshow(dilatedZ)

% %  centroid
   Zbw = im2bw(dilatedZ,0.1);
   imshow(Zbw)

       cent = regionprops(Zbw,'centroid');

   se=strel('line',11,90);

     imshow(Zbw); hold on;
     for x = 1:2
         plot(cent(x).Centroid(1),cent(x).Centroid(2),'ro');
     end

[Chaya N]

And what is your question exactly? Please provide details.

[syawal rosly]

sorry..actually i try to store the value of the centroid in array..i get the value of the centroid from a few of frame.. i want to do a car counting project.. im not really good in english..sorry..hehe

Answer 1

[KSSV]

I guess you want to store centroids into an array. You can store centroids into array using:

centroids=cat(1, cent.Centroid) ;

Answer 2

[Walter Roberson]

Just before

%     frame2

insert

cent1 = [cent.Centroid];

and after the end of the code you show,

cent2 = [cent.Centroid];

then cent1 and cent2 will each be numeric arrays with two rows each of which indicates one centroid.