如何给图像添加矩形框？以及添加想要输入的文字 ？ 案例程序，如下所示：

clc; close all; clear all;

image = imread('/home/wangxiao/Pictures/image/gamersky_022origin_043_20147261368D.jpg');

figure;imshow(image);

hold on

rectangle('Position',[100 100 100 100],'LineWidth',4,'EdgeColor','r');

效果如下：

添加文字：

clc; close all; clear all;

image = imread('/home/wangxiao/Pictures/image/gamersky_022origin_043_20147261368D.jpg');

figure;imshow(image);

hold on

rectangle('Position',[100 100 100 100],'LineWidth',4,'EdgeColor','r');

xlim=get(gca,'xlim');

ylim=get(gca,'ylim');

N=100;

text(sum(xlim)/2,sum(ylim)/2+N,'what you want to input, just input here !','horiz','center')