clc;
clear all;

maindir = \'C:\Users\wang\Desktop\iLIDS-VID\i-LIDS-VID\images\cam2\';
subdir = dir( maindir ); % 先确定子文件夹

for i = 1 : length( subdir )
if( isequal( subdir( i ).name, \'.\' ) || ...
isequal( subdir( i ).name, \'..\' ) || ...
~subdir( i ).isdir ) % 如果不是目录跳过
continue;
end

subdirpath = fullfile( maindir, subdir( i ).name, \'*.png\' );
images = dir( subdirpath ); % 在这个子文件夹下找后缀为jpg的文件

% 遍历每张图片
for j = 1 : length( images )
imagepath = fullfile( maindir, subdir( i ).name, images( j ).name )
bgFile = imagepath;% 读入图片的完整路径

Background = imread(bgFile); % 读入图片、灰度化
imwrite(Background,[\'C:\Users\wang\Desktop\1-3\\',int2str(i),\'_bw.png\']);
% figure(i)
%
% saveas(i,[\'C:\Users\wang\Desktop\1-1\\',int2str(i),\'_bw.png\']);%将处理后的图片保存到目标文件夹
end
end