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;
clc;
) t+ q& j4 A- z/ G3 F3 o. E%%
slashtype = filesep;
% P6 d& p# v% \- R%  FILESEP Directory separator for this platform.
%     F = FILESEP returns the file separator character for this platform.
%     The file separator is the character that separates
%     directory names in filenames.
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options.dir = ['.',slashtype]; % The directory you would like to read

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

5 p; U& ?0 {& y, N3 `7 V* V% Read all the files in this directory with the extensions
[fileinfo,filenumber] = Read_Dir_Files(options.dir,imext);
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% h+ m, C3 n8 xRead_Dir_Files 函数如下：
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function [fileinfo,filenumber] = Read_Dir_Files(inputdir,extention)
% This function read the files with all the input extensions in the directory 'inputdir'
& b8 V  X! W& m3 D1 [$ z5 n2 l% Input: inputdir  --- the directory you would like to go through
2 ]% n+ J; t0 U% B%        extention --- cells, have the extension you specified
/ A% k& m+ Q& r( M+ q1 ^% Output: fileinfo --- cells, fileinfo{i}.fullname fileinfo{i}.name
%                      fileinfo{i}.extension
%         filenumber -- the total number of files
- k( K! [# d1 U  G/ A" M( j$ {3 Y%
6 j4 s6 i* y$ ~/ U$ O% Example usage: [fileinfo,filenumber] = Read_Dir_Files('./',{'.m'})
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7 l% g3 Y5 H1 R2 {# jfiles = dir(inputdir);  % get all the name of files and dirs under the folder 'inputdir'
/ q8 N& [; J+ a0 _9 j. X% Here files can be file or a directory


9 Q5 P6 C$ n, |0 z( e( E%Loop over all filenames
; c( p+ ^1 K3 H# W# Sii=0;
* s8 A3 d) u4 Z+ E! m' i  |5 cfor iF = 1:length(files)
7 }: X% ^4 Y7 `9 A# ]1 ^5 X    %
7 `( }* N/ r# C    if (~files(iF).isdir)
' i8 V( M, x1 A. J4 y        %
        % If name is not a directory get detailed information
* h, t1 q4 h" h/ e5 M+ \        %
+ \2 c5 q! u) e7 i' x        [pathstr, name, ext] = fileparts(files(iF).name);
        %     [PATHSTR,NAME,EXT,VERSN] = FILEPARTS(FILE) returns the path,
        %     filename, extension and version for the specified file.
) D7 _; I5 Y& {3 p) f4 }) b        %     FILEPARTS is platform dependent.
        
. R* p5 d$ I: e" k# O' s) V! q* [: I        %Loop for all the extension
        for ie=1:length(extention)
            %
            % Compare to known extentions and add to list
            %
  p6 X4 o1 J: W. ?' r6 N            if (strcmpi(extention{ie},ext))
6 t) H; |. f- [+ L5 W9 Y                ii = ii + 1;
2 [4 U4 ~; B2 J; [0 {/ l5 h) O+ [                ext = ext(2:end);
                fileinfo{ii}.fullname   = [inputdir,name,'.',ext];
. O  r3 \! ~6 h" x' L) s% G( A) Y                fileinfo{ii}.name       = name;
! ^4 u5 C/ l) N- R7 c+ y1 L                fileinfo{ii}.extension  = ext;
            end
            %
        end
* k0 X2 f% t& q3 u2 V7 J, M        %
    end
  ^: P7 |0 g  c+ U5 q3 ?9 Q    %
end
9 m6 |! E& e3 t5 ^" n0 Afilenumber = ii;
! M% v0 x- i* V5 a$ |4 Sif filenumber==0
    fileinfo={};
& F: K& C( w" `4 z8 Yend
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* z! B: ]* y8 i. hend
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yin123

Matlab读取文件夹中所有特定类型文件