% 读取图象数据到矩阵 [A, map] = imread(\'E:\\test.jpg\'); % 得到图象信息 info = imfinfo(\'E:\\test.jpg\'); w = info.Width; h = info.Height; % 创建与图象大小相对应的网格 [x,y] = meshgrid(1:w,1:h); z = x - y + y - x; i = 1; j = 1; % 用图象灰度值填充高度值 while (i - 1) * w + j <= w * h z(i,j) = A(i,j); j = j + 1; if j > w j = 1; i = i + 1; end end; % 绘制三维图象 meshc(x,y,z); % 绘制表面 surf(x,y,z,\'FaceColor\',\'interp\',\'EdgeColor\',\'none\',\'FaceLighting\',\'phong\')