function [state,result]=draw_rect(data,pointAll,windSize,showOrNot)
% 函数调用：[state,result]=draw_rect(data,pointAll,windSize,showOrNot)
% 函数功能：在图像画个长方形框
% 函数输入：data为原始的大图，可为灰度图，可为彩色图
%          pointAll 框的左上角在大图中的坐标(每行代表一个坐标)，
%                   注意：在图中的坐标系为第一列为y,第二列为x(很奇怪的)
%          windSize 框的大小 windSize=[112,92] 分别表示长宽
%          showOrNot 是否要显示,默认为显示出来
% 函数输出：state -- 表示程序结果状态
%          result - 结果图像数据 
% 函数历史： v0.0 @2013-01-27 created by Aborn

if nargin < 4
    showOrNot = 1;
end

rgb = [255 255 0];                                 % 边框颜色
lineSize = 3;                                      % 边框大小，取1，2，3

windSize(1,1)=windSize(1,1);
windSize(1,2) = windSize(1,2);
if windSize(1,1) > size(data,1) ||...
        windSize(1,2) > size(data,2)
    state = -1;                                     % 说明窗口太大，图像太小，没必要获取
    disp(\'the window size is larger then image...\');
    return;
end

result = data;
if size(data,3) == 3
    for k=1:3
        for i=1:size(pointAll,1)   %画边框顺序为：上右下左的原则
            result(pointAll(i,1),pointAll(i,2):pointAll(i,2)+windSize(i,1),k) = rgb(1,k);   
            result(pointAll(i,1):pointAll(i,1)+windSize(i,2),pointAll(i,2)+windSize(i,1),k) = rgb(1,k);
            result(pointAll(i,1)+windSize(i,2),pointAll(i,2):pointAll(i,2)+windSize(i,1),k) = rgb(1,k);  
            result(pointAll(i,1):pointAll(i,1)+windSize(i,2),pointAll(i,2),k) = rgb(1,k);  
            if lineSize == 2 || lineSize == 3
                result(pointAll(i,1)+1,pointAll(i,2):pointAll(i,2)+windSize(i,1),k) = rgb(1,k);  
                result(pointAll(i,1):pointAll(i,1)+windSize(i,2),pointAll(i,2)+windSize(i,1)-1,k) = rgb(1,k);
                result(pointAll(i,1)+windSize(i,2)-1,pointAll(i,2):pointAll(i,2)+windSize(i,1),k) = rgb(1,k);
                result(pointAll(i,1):pointAll(i,1)+windSize(i,2),pointAll(i,2)-1,k) = rgb(1,k);
                if lineSize == 3
                    result(pointAll(i,1)-1,pointAll(i,2):pointAll(i,2)+windSize(i,1),k) = rgb(1,k);   
                    result(pointAll(i,1):pointAll(i,1)+windSize(i,2),pointAll(i,2)+windSize(i,1)+1,k) = rgb(1,k);
                    result(pointAll(i,1)+windSize(i,2)+1,pointAll(i,2):pointAll(i,2)+windSize(i,1),k) = rgb(1,k);
                    result(pointAll(i,1):pointAll(i,1)+windSize(i,2),pointAll(i,2)+1,k) = rgb(1,k);
                end
            end
        end
    end
end

state = 1;

if showOrNot == 1
    figure;
    imshow(result);
end

% main.m
clc;
clear;
close all;

data = imread(\'man_1.jpg\');
pointAll = [5,20];
windSize = [100,30];

[state,results]=draw_rect(data,pointAll,windSize);
return;