Matlab - Foreground Segmentation - image processing

[poster]

I am trying to segment this image using foreground segmentation:

Image Before
And i am trying to produce this:
Complete segmented image

code:

`clc;    % Clear the command window.

close all;  % Close all figures (except those of imtool.)

clear;  % Erase all existing variables. Or clearvars if you want.



%===============================================================================

% Get the name of the image the user wants to use.

baseFileName = 'in000439.png';

% Get the full filename, with path prepended.

folder = []; % Determine where demo folder is (works with all versions).

fullFileName = fullfile(folder, baseFileName);

%===============================================================================

% Read in a demo image.

grayImage = imread(fullFileName);

% Get the dimensions of the image.

% numberOfColorChannels should be = 1 for a gray scale image, and 3 for an RGB color image.

[rows, columns, numberOfColorChannels] = size(grayImage)

if numberOfColorChannels > 1

  % It's not really gray scale like we expected - it's color.

  % Use weighted sum of ALL channels to create a gray scale image.

  grayImage = rgb2gray(grayImage);

  % ALTERNATE METHOD: Convert it to gray scale by taking only the green channel,

  % which in a typical snapshot will be the least noisy channel.

  % grayImage = grayImage(:, :, 2); % Take green channel.

end

% Display the image.

subplot(2, 2, 1);

imshow(grayImage, []);

% Binarize the image by thresholding.

mask = grayImage < 100;

% Display the mask image.

% Get rid of blobs touching the border.

mask = imclearborder(mask);

% Extract just the largest blob.

mask = bwareafilt(mask, 1);

% Display the mask image.

subplot(2, 2, 4);

imshow(mask);



% Get rid of black islands (holes) in struts without filling large black areas.

subplot(2, 2, 4);

mask = ~bwareaopen(~mask, 1000);

imshow(mask);

drawnow;`

However my result of this is currently:
Current result

Does anyone have any idea of what i can do to get my result. I have been struggling any help will do thanks.

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