Matlab读取文件夹中所有特定类型文件

baqiao

假如要读取某个文件夹中所有的图片文件：clear all;
5 N$ P+ d6 n9 Zclc;
  r/ D& W1 I: K+ x/ A1 \2 d%%
# T" p6 U# I2 \+ m+ islashtype = filesep;
%  FILESEP Directory separator for this platform.
1 O9 j5 K! X0 V  P0 m%     F = FILESEP returns the file separator character for this platform.
%     The file separator is the character that separates
%     directory names in filenames.

options.dir = ['.',slashtype]; % The directory you would like to read

$ _" _0 A/ u& @7 \2 fimext = {'.jpg','.bmp','.png','.tiff','.tif'}; % All the file extentions
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% Read all the files in this directory with the extensions
[fileinfo,filenumber] = Read_Dir_Files(options.dir,imext);

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Read_Dir_Files 函数如下：
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function [fileinfo,filenumber] = Read_Dir_Files(inputdir,extention)
( F; a0 u* C% }; C% This function read the files with all the input extensions in the directory 'inputdir'
7 Q; h3 d: S$ M  V- t$ q! B4 [% Input: inputdir  --- the directory you would like to go through
# c6 ?1 ]. k) j  K5 o+ C2 U. i. z%        extention --- cells, have the extension you specified
% Output: fileinfo --- cells, fileinfo{i}.fullname fileinfo{i}.name
%                      fileinfo{i}.extension
" ?% R' }1 d  Q% y& b% I%         filenumber -- the total number of files
, [) B2 {+ j) J: y& i( c%
% Example usage: [fileinfo,filenumber] = Read_Dir_Files('./',{'.m'})
%

files = dir(inputdir);  % get all the name of files and dirs under the folder 'inputdir'
' l5 f9 E" p6 ^  m, I. O% Here files can be file or a directory

% H' J5 v( X( ]; l! ^! z
%Loop over all filenames
ii=0;
5 n3 W6 v# ]$ t8 W/ y- gfor iF = 1:length(files)
    %
1 Y! I7 d( b$ U( g: l    if (~files(iF).isdir)
: q+ d+ n8 L7 y% J        %
+ O: Q6 Q4 s1 {  ]) U        % If name is not a directory get detailed information
7 O8 S' l/ `1 P: M        %
  w4 b  J! O# s+ @) N, @7 Q        [pathstr, name, ext] = fileparts(files(iF).name);
: B' }3 h2 I% `. M        %     [PATHSTR,NAME,EXT,VERSN] = FILEPARTS(FILE) returns the path,
2 W8 \: v' V) W3 @3 u: Z        %     filename, extension and version for the specified file.
        %     FILEPARTS is platform dependent.
        
( V  i6 u; c2 n/ x" D4 P        %Loop for all the extension
        for ie=1:length(extention)
            %
            % Compare to known extentions and add to list
0 D! }7 L: k- w            %
2 V! i8 Z2 ?' Q( f# Q/ v! C            if (strcmpi(extention{ie},ext))
                ii = ii + 1;
                ext = ext(2:end);
5 P2 Y8 D" [0 ~' z" U. E                fileinfo{ii}.fullname   = [inputdir,name,'.',ext];
                fileinfo{ii}.name       = name;
5 z( Q  d& n4 [, w7 d: `- z                fileinfo{ii}.extension  = ext;
( ^' R' z; E+ }1 I            end
            %
        end
        %
    end
% o5 g7 V9 `, A& b    %
end
- V) n5 x7 t( I5 Y2 W' O9 jfilenumber = ii;
if filenumber==0
  Q& ?9 E7 t$ ?/ v3 n    fileinfo={};
end
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/ x' f5 ?# O7 @! iend
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yin123

Matlab读取文件夹中所有特定类型文件