global im
[filename,pathname]=uigetfile('*.jpg','输入图片');
file=strcat(pathname,filename);
im=imread(file);
axes(handles.axes1);%在坐标1显示
imshow(im);
ha=axes('units','normalized','position',[0 0 1 1]);
uistack(ha,'down')
II=imread('E:\1.jpg');%作为背景的图片
image(II)
colormap gray
set(ha,'handlevisibility','off','visible','off');