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;
%%
slashtype = filesep;
%  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.

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

$ N' T* _* ]9 V' Uimext = {'.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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Read_Dir_Files 函数如下：

function [fileinfo,filenumber] = Read_Dir_Files(inputdir,extention)
4 `' |4 c, R, m* P% This function read the files with all the input extensions in the directory 'inputdir'
% Input: inputdir  --- the directory you would like to go through
; \, |3 Z6 D: f  ^8 Q7 Z  [' v%        extention --- cells, have the extension you specified
9 X- P: [7 Q* [8 J8 A4 ^% Output: fileinfo --- cells, fileinfo{i}.fullname fileinfo{i}.name
%                      fileinfo{i}.extension
%         filenumber -- the total number of files
%
% Example usage: [fileinfo,filenumber] = Read_Dir_Files('./',{'.m'})
%

files = dir(inputdir);  % get all the name of files and dirs under the folder 'inputdir'
* g0 L, I, j# x( ^+ S- k9 q6 g3 a% Here files can be file or a directory

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8 }. C# t; C2 i%Loop over all filenames
3 R( F! w* \- J; c  X# A0 b: N" c' v7 Wii=0;
' m3 }/ \% `: K7 [' M5 x' g1 \for iF = 1:length(files)
, p: ~2 K1 O2 w9 g) v9 r    %
8 C" ~8 g5 Y; L, v7 F- U; r/ E    if (~files(iF).isdir)
6 c# C% J. H7 z" y) F, D        %
        % If name is not a directory get detailed information
        %
1 b0 \$ N6 i0 P  G& m& v/ F        [pathstr, name, ext] = fileparts(files(iF).name);
        %     [PATHSTR,NAME,EXT,VERSN] = FILEPARTS(FILE) returns the path,
        %     filename, extension and version for the specified file.
" F) ]+ f3 V; s( \% ]8 {' L6 s  d        %     FILEPARTS is platform dependent.
4 V. H8 h+ V* h5 l        
# p. P; N1 B; e/ g: G  U9 k        %Loop for all the extension
        for ie=1:length(extention)
! }  ~* g/ g8 `( Z, }            %
2 k$ L$ ?4 S& y0 F! Z            % Compare to known extentions and add to list
            %
$ _" X. w: J4 F8 W            if (strcmpi(extention{ie},ext))
. u7 [( U* ^0 n8 o! K; j  N                ii = ii + 1;
8 Y! {/ _' t8 }1 b. h4 j& ^) o5 D                ext = ext(2:end);
                fileinfo{ii}.fullname   = [inputdir,name,'.',ext];
' q1 a% B& d+ X3 h5 ~' G                fileinfo{ii}.name       = name;
2 w% ?5 i8 ?1 b3 {( X1 s2 b8 x/ X8 u                fileinfo{ii}.extension  = ext;
            end
            %
        end
        %
6 ~! U$ ]$ c4 b5 d    end
    %
end
filenumber = ii;
if filenumber==0
    fileinfo={};
0 r' V. w" g1 Z$ d/ @0 z5 eend
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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