matlab 显示文件夹所有图片

最近写实验报告，想多插入几个图，因为涉及到很多图片，为了介绍这个小数据集，想将所有图片放在一起列出来，所以自己写了一个标准化的小函数，如有帮助那就最好，也希望大家多多指正。

效果：

function Result = listimage(path, picsize, row_num)
%show all the images
%3-channel images
%Input:
%       path:the path of the image
%       picsize:the picsize of image to be shown in the result default = [100 100]
%       row_num:the num of each row  default = 10
%Output:
%       Result:the result image
%Author:
%       卍KID
%Time:
%       2014.3.16(SZU)

if nargin == 1
    picsize = [100 ,100];
    row_num = 10;
end

if nargin == 2
    row_num = 10;
end

ext = {'*.jpeg','*.jpg','*.png','*.pgm','*.bmp'};   
files = [];

for i = 1:length(ext)
    files = [files dir([path ext{i}])];
end

l = fix(length(files)/row_num);

Result = zeros((l+1)*picsize(1) ,row_num*picsize(2) ,3);

for i = 1:length(files)

    Img = imread([path files(i).name]);
    size_img = size(Img);
    if size_img(3) ~= 3
        error('this is not a 3 channel image');
    end
    Img = im2double(Img);
    newImg = imresize(Img ,picsize ,'bicubic');

    n = mod(i-1 ,row_num);
    newn = picsize(2)*n;    

    m  =  fix((i-1)/row_num);
    newm = picsize(1)*m;

    Result(newm+1 : newm+picsize(1) ,newn+1 : newn+picsize(2) ,1) = newImg(:,:,1);
    Result(newm+1 : newm+picsize(1) ,newn+1 : newn+picsize(2) ,2) = newImg(:,:,2);
    Result(newm+1 : newm+picsize(1) ,newn+1 : newn+picsize(2) ,3) = newImg(:,:,3);

end
imshow(Result);