function Vert=FiltreVert(img)
[m,n,t]=size(img);
Vert=zeros(m,n,t);
for i=1:m
    for j=1:n
        if(img(i,j,2)>85&&img(i,j,1)<85&&img(i,j,3)<85)
            Vert(i,j,2)=1;
        end
    end
end