function [ bw ] = segment( net,img )%segment 利用訓練好的神經網絡進行分割圖像%  net - 已經訓練好的神經網絡%  img - 等分割的圖像%輸出 bw - 分割后的二值圖像[m n] = size(img);P = img(:) ;P = double(P);P = P' ;T = sim(net,P);T(T<0.5) = 0 ;T(T>0.5) = 255 ;t = uint8(T);t = t';bw = reshape(t,m,n);