how to read list of files in correct sequence.

i have a folder containing files (images) named 1,2,....300, when i make filelist of the folder to use the files, matlab use the following sequance 1,10,101,..109,11,110....

how can i make the list in the correct file sequance .

Note: files are images used in image processing.

[Stephen23]

Download my FEX submission natsortfiles, which was written to solve exactly this problem:

http://www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort

[Guillaume]

This should have gone as an answer!

[eanass abouzeid]

i have tried it, but it gave me the following error "Undefined function 'regexprep' for input arguments of type 'struct'. Error in sort_nat (line 46) c2 = regexprep(c,'\d+','0');"

[Walter Roberson]

Do not pass it the directory information: pass it the file names extracted from the directory information. For example,

dinfo = dir('*.tif');
filenames = {dinfo.name};
sorted_filenames = sort_nat_file(filenames);

[Stephen23]

Your could download my FEX submission natsortfiles, which was written to solve exactly this problem:

S = dir(..);
S = natsortfiles(S);

Answer 1

[Walter Roberson]

https://www.mathworks.com/matlabcentral/fileexchange/47434-natural-order-filename-sort

Answer 2

[Image Analyst]

See blog discussion of this "Pick of the week": http://blogs.mathworks.com/pick/2014/12/05/natural-order-sorting/

Answer 3

[Azzi Abdelmalek]

Your names look like this

s=arrayfun(@num2str,1:100,'un',0)
a=sort(s)

To sort them as you want

[~,ii]=sort(str2double(a))
out=a(ii)

Read also this http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F