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;
: C% Y8 O0 m. Eclc;
5 `' a  j& C% `+ I' d. D%%
slashtype = filesep;
%  FILESEP Directory separator for this platform.
%     F = FILESEP returns the file separator character for this platform.
4 z$ W, M- P0 U0 J8 C5 j# {1 m%     The file separator is the character that separates
5 ?7 e+ E9 ?* D4 r, d%     directory names in filenames.

* u, f1 U& z- Q. H9 p+ ]9 `3 X0 Qoptions.dir = ['.',slashtype]; % The directory you would like to read

# x4 d! i% G2 P. U5 yimext = {'.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);


Read_Dir_Files 函数如下：

function [fileinfo,filenumber] = Read_Dir_Files(inputdir,extention)
% This function read the files with all the input extensions in the directory 'inputdir'
  q1 I* @4 }' \' N& r0 g2 L% Input: inputdir  --- the directory you would like to go through
+ ]$ K6 {8 \/ N. Z# u%        extention --- cells, have the extension you specified
# T& j0 n3 H1 e9 S3 x% Output: fileinfo --- cells, fileinfo{i}.fullname fileinfo{i}.name
%                      fileinfo{i}.extension
%         filenumber -- the total number of files
( u5 v9 B0 t8 K* q%
% Example usage: [fileinfo,filenumber] = Read_Dir_Files('./',{'.m'})
%
# x$ m/ Z& v$ F" a$ u/ l
4 s6 j5 Y# G4 _6 Z- z& Nfiles = dir(inputdir);  % get all the name of files and dirs under the folder 'inputdir'
% Here files can be file or a directory
: n" h9 W: V' t2 C2 t1 `

& a! l' ~# y3 U%Loop over all filenames
ii=0;
6 \, n! O. A, @" W2 j, @for iF = 1:length(files)
7 Y, A- N' x& h3 u7 b8 X$ ^    %
    if (~files(iF).isdir)
- k# T8 F. L' u  P        %
        % If name is not a directory get detailed information
        %
/ }. P- @' g, W1 T& v        [pathstr, name, ext] = fileparts(files(iF).name);
        %     [PATHSTR,NAME,EXT,VERSN] = FILEPARTS(FILE) returns the path,
, B- a* b6 ^4 L. b/ _! ^        %     filename, extension and version for the specified file.
        %     FILEPARTS is platform dependent.
, U* \1 P, \. c7 S        
        %Loop for all the extension
        for ie=1:length(extention)
, t: v. Y' V$ U! z7 \9 N            %
; D! y. f. l* c* Y* n            % Compare to known extentions and add to list
            %
            if (strcmpi(extention{ie},ext))
                ii = ii + 1;
                ext = ext(2:end);
+ Z2 O0 M. y0 t; v2 Q                fileinfo{ii}.fullname   = [inputdir,name,'.',ext];
                fileinfo{ii}.name       = name;
( h0 ], ^8 g- W% }" T$ [                fileinfo{ii}.extension  = ext;
% f/ l* x( T5 f  ^% `            end
! [& p, p9 j7 u            %
; }2 {! g# ?* H        end
( N6 G4 j5 k5 b$ P1 ]' ~$ A        %
5 L; b- c* G( z, {; I    end
! r3 D+ S! P" H! u2 }& ?    %
end
+ I# ?3 L. [* h; H. j8 ?. X4 I/ Ufilenumber = ii;
if filenumber==0
    fileinfo={};
end
) A# P( K4 l4 x0 t, i
end
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+ _; B; v8 D  s

yin123

Matlab读取文件夹中所有特定类型文件