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;
7 c5 ^4 Y3 m  Q* G/ S3 y; E" k%%
! I& l. u, g7 |6 B, o8 rslashtype = filesep;
%  FILESEP Directory separator for this platform.
+ Q+ S6 ]6 W0 i7 r/ a+ i/ W%     F = FILESEP returns the file separator character for this platform.
%     The file separator is the character that separates
9 C& k: e% v5 L+ b# ]- S- v9 o%     directory names in filenames.

. x6 S+ W: o& E% i# n9 V; \: K1 ioptions.dir = ['.',slashtype]; % The directory you would like to read

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

% Read all the files in this directory with the extensions
[fileinfo,filenumber] = Read_Dir_Files(options.dir,imext);
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5 S6 L( v5 J3 {Read_Dir_Files 函数如下：
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# {% r2 D0 E4 I/ ofunction [fileinfo,filenumber] = Read_Dir_Files(inputdir,extention)
* \( U9 \3 ^1 q" R" d2 M7 u/ B% This function read the files with all the input extensions in the directory 'inputdir'
/ z5 C" y  {1 e2 Q/ S( {% Input: inputdir  --- the directory you would like to go through
, ?+ H/ j0 ]6 m0 G2 T; G- d% i) C+ s%        extention --- cells, have the extension you specified
7 n8 G0 t; I: R: P- B% Output: fileinfo --- cells, fileinfo{i}.fullname fileinfo{i}.name
%                      fileinfo{i}.extension
%         filenumber -- the total number of files
%
3 x: o+ r3 l6 O( y* k9 ~- ~% Example usage: [fileinfo,filenumber] = Read_Dir_Files('./',{'.m'})
: ?, p4 F; z- O  K1 i! l5 x%
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files = dir(inputdir);  % get all the name of files and dirs under the folder 'inputdir'
' E3 a' }# Z/ l7 N# U* O% Here files can be file or a directory

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%Loop over all filenames
ii=0;
3 m  \8 h8 N9 R% y5 Cfor iF = 1:length(files)
    %
    if (~files(iF).isdir)
        %
        % If name is not a directory get detailed information
        %
# J0 A) M+ f' k; V$ H% @        [pathstr, name, ext] = fileparts(files(iF).name);
8 ?7 w1 u" K% u, U        %     [PATHSTR,NAME,EXT,VERSN] = FILEPARTS(FILE) returns the path,
        %     filename, extension and version for the specified file.
. v1 j$ b* c, A4 ~9 u% j- h& u        %     FILEPARTS is platform dependent.
7 J# S5 `  `; Z0 D3 p        
        %Loop for all the extension
+ f+ k) y1 `: ?- k5 @0 i        for ie=1:length(extention)
            %
            % Compare to known extentions and add to list
            %
% S! D% W* i0 I: i/ `: Q+ N3 i            if (strcmpi(extention{ie},ext))
                ii = ii + 1;
                ext = ext(2:end);
) H3 V' I) X% n. D) Z1 z                fileinfo{ii}.fullname   = [inputdir,name,'.',ext];
, j4 E2 f/ @" Q( F' h, x7 n                fileinfo{ii}.name       = name;
, n9 K0 }9 Q1 j1 n7 \/ _                fileinfo{ii}.extension  = ext;
            end
6 F* x/ B1 {0 L8 W: _! {            %
, Q5 _& d' x* N        end
3 A& k/ X  q! f- H% `" o        %
; T) o4 ^( l* }" N" F- P9 I  F    end
    %
end
filenumber = ii;
7 H6 l2 z: q2 l# Dif filenumber==0
    fileinfo={};
end
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end
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yin123

Matlab读取文件夹中所有特定类型文件