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function img = carve_it(I,center,window_size_h)
[size_y,size_x]= size(I);
min_x = round(center(1)-window_size_h(1));
max_x = round(center(1)+window_size_h(1));
min_y = round(center(2)-window_size_h(2));
max_y = round(center(2)+window_size_h(2));
window_size = window_size_h*2 +1;
if (min_x <1)|(max_x > size_x)|(min_y<1)|(max_y>size_y),
disp('window too big');
center
window_size_h
img = zeros(window_size(2),window_size(1));
n_min_x = max(1,round(min_x));
n_min_y = max(1,round(min_y));
n_max_x = min(size_x,round(max_x));
n_max_y = min(size_y,round(max_y));
img(1+(n_min_y-min_y):window_size(2)-(max_y-n_max_y),1+(n_min_x-min_x):window_size(1)-(max_x-n_max_x))=I(n_min_y:n_max_y,n_min_x:n_max_x);
else
img = I(center(2)-window_size_h(2):center(2)+window_size_h(2),...
center(1)-window_size_h(1):center(1)+window_size_h(1));
end
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