code frame different to count people

Hi

i try to write code in matlab using this paper "https://www.researchgate.net/publication/234710128_Counting_of_People_in_the_Extremely_Dense_Crowd_using_Genetic_Algorithm_and_Blobs_Counting

but not gave me results any one can help me??

%%% First-iteration background frame
background_frame = double(I*0);
redbackground_frame = background_frame(:,:,1);
greenbackground_frame = background_frame(:,:,2);
bluebackground_frame = background_frame(:,:,3);


i=0;
for k = 1:100:nf-1 %get background 
   thisframe = double(read(v, k))/ 255;
    %background_frame = background_frame + thisframe;
   redbackground_frame = redbackground_frame + thisframe(:,:,1);
   greenbackground_frame = greenbackground_frame + thisframe(:,:,2);
   bluebackground_frame = bluebackground_frame + thisframe(:,:,3);
    i=i+1;
   % disp(i);
 % Frames = imadd(read(vob, k),read(vob, k+1));
end

A = redbackground_frame/i;
B = greenbackground_frame/i;
C = bluebackground_frame/i;
background = cat(3,A,B,C);
 figure,
imshow(background);
y = medfilt2(rgb2gray(I));figure,
imshow(y);title 'med filter' ;
lastfram=read(v,nf);
Z = imsubtract(rgb2gray(I),rgb2gray(I2)); 
%Z = imsubtract(rgb2gray(read(v,200)),rgb2gray(lastfram)); 
%Z=I-background;
figure;imshow(Z);title 'deferent' ;
%-------------------------------------------------------------------
%Idiff=rgb2gray(I2)-rgb2gray(background);
%figure,
%imshow(Idiff);title 'deferent2img' ;

%%%%%%%%%%%%%%%%
binaryImage =  imbinarize(Z);
binaryImage = bwareafilt(binaryImage, 1);
labeledImage1 = bwlabel(binaryImage);
props = regionprops(labeledImage1, 'BoundingBox');
hold on;
hRect = rectangle('Position', props.BoundingBox);
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%5
BIdiff=imbinarize(Z);
figure,
imshow(BIdiff);title 'deferentBw' ;
CC = bwconncomp(BIdiff);

%BW2 = bwareafilt(BW,8);
%BIdiff1=imbinarize(Idiff,'adaptive');
%figure,
%imshow(BW2);title 'deferent coonect' ;

binaryImage = bwareafilt(BIdiff, 1);
labeledImage = bwlabel(BIdiff);
%[rl, cl] = find(labeledImage==1);
%rc = [rl cl];

blobMeasurements = regionprops(CC,'all');
props = regionprops(labeledImage, 'BoundingBox');

%figure;imshow(props.BoundingBox);title 'deferent coonect' ;
%hRect = rectangle('Position', props.BoundingBox);
numberOfmoving = size(blobMeasurements, 1)% count the number of people

[Walter Roberson]

What is I in

background_frame = double(I*0);

? And in

thisframe = double(read(v, k))/ 255;

is v a VideoReader object ?

[hajer jon]

yes

I is an image wich frame of video

v is video reader object

[Walter Roberson]

I think it would help to have a short sample video to test with. You can zip one and attach it, as long as the zip is 5 megabytes or less.