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;
- ]6 W% c5 M: o% Z0 \7 ~clc;
3 N( D% B  q0 q! R2 y%%
8 v2 p$ F, _/ D! hslashtype = filesep;
" e) l  R& j/ R0 h2 ]7 r# Z%  FILESEP Directory separator for this platform.
%     F = FILESEP returns the file separator character for this platform.
, n# Q6 P: m* {' z& W5 D6 h: X4 ~%     The file separator is the character that separates
%     directory names in filenames.
5 Z3 j% l% y% s: t' _. Z
7 w1 k2 v0 I- d% z" m$ `options.dir = ['.',slashtype]; % The directory you would like to read

imext = {'.jpg','.bmp','.png','.tiff','.tif'}; % All the file extentions

! W5 x$ b# S& V6 N7 [, s% 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：

3 f8 J: ^0 T. p+ zfunction [fileinfo,filenumber] = Read_Dir_Files(inputdir,extention)
% v: }( E/ ^$ X  t% This function read the files with all the input extensions in the directory 'inputdir'
% Input: inputdir  --- the directory you would like to go through
%        extention --- cells, have the extension you specified
% Output: fileinfo --- cells, fileinfo{i}.fullname fileinfo{i}.name
%                      fileinfo{i}.extension
%         filenumber -- the total number of files
%
& O+ r" |) l1 N% Example usage: [fileinfo,filenumber] = Read_Dir_Files('./',{'.m'})
%
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  k+ z7 Y% y/ _, o4 J* xfiles = dir(inputdir);  % get all the name of files and dirs under the folder 'inputdir'
  l9 T/ L+ O1 m" n% Here files can be file or a directory


7 p8 x1 J5 D7 g%Loop over all filenames
ii=0;
for iF = 1:length(files)
; ?4 t# |4 b' W$ W5 x    %
. Q0 A; U/ V" A3 G: ^7 X0 B    if (~files(iF).isdir)
9 @, u- y1 K7 `. s        %
* W# v+ c! }- Q/ Z" `        % If name is not a directory get detailed information
        %
        [pathstr, name, ext] = fileparts(files(iF).name);
  G; L  U! F8 L- W- ?        %     [PATHSTR,NAME,EXT,VERSN] = FILEPARTS(FILE) returns the path,
  [- c3 O* s3 v2 U        %     filename, extension and version for the specified file.
        %     FILEPARTS is platform dependent.
1 Q3 ~& j; F) E! d6 Y  L' b        
        %Loop for all the extension
        for ie=1:length(extention)
- j' m4 ]$ \4 j  n5 |. J* l6 [' ?- B8 p' _            %
' `& j0 G# B  p$ Z            % Compare to known extentions and add to list
            %
            if (strcmpi(extention{ie},ext))
% M: ]+ J. n& W" y                ii = ii + 1;
                ext = ext(2:end);
6 K# G- M4 f1 d! U6 p" X                fileinfo{ii}.fullname   = [inputdir,name,'.',ext];
                fileinfo{ii}.name       = name;
                fileinfo{ii}.extension  = ext;
$ M. Y( n7 a0 O- z: W- p3 z            end
8 Y3 C7 {9 r0 W6 W            %
        end
        %
    end
- D! j& l. ?$ U6 X& D4 d7 K    %
end
% @. Z3 d; s2 N7 o" sfilenumber = ii;
if filenumber==0
    fileinfo={};
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8 E% s' B( ~) e# J' C5 `( }
end

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yin123

Matlab读取文件夹中所有特定类型文件