manual pixel selection for grow cut segmentation then autosegment based on pixel intensity values within 100 in matlab

main.m
% Read the input image
img = imread('input_image.jpg');
imshow(img);

% Select the pixels to be segmented using impixel()
pixel_selection = impixel(img);
[row, col, ~] = size(img);
mask = zeros(row, col);

% Set the selected pixels in the mask
for i = 1:size(pixel_selection, 1)
    x = pixel_selection(i,1);
    y = pixel_selection(i,2);
    mask(y,x) = 1;
end

% Perform the segmentation using grow cut
bw = im2bw(img, graythresh(img));
mask = imdilate(mask,strel('disk',1)); % Dilate the mask for better performance
bw_cut = growcut(img,mask);

% Segment pixels based on intensity values within 100
for i = 1:row
    for j = 1:col
        if img(i,j) <= 100
            bw_cut(i,j) = 0;
        end
    end
end

% Display the segmented image
imshow(bw_cut);
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