renaming the image files

I have more than hundred pictures and i want to rename them..

old name : 1_new, 2_new...... new name : tour1_pictures, tour2_pictures,.......

Answer 1

[ES]

1. Get the Files in the directory... ([~,ListofImages]=dos('dir   /b /s te_*.jpg');)
2. Get the Number from it..(1, 2, etc) (RegExFileName = '[0-9]+_new'; [~,StartIdx]=regexpi(FileName, RegExFileName , 'match');)
3. Format New Name, (NewFileName=['tour',num2str(index),'_pictures'])
4 do a movefile to rename.. movefile(SourceFileName, NewFileName);

[RAMESH MUNIRATHINAM]

thank you.. will try

[RAMESH MUNIRATHINAM]

can i get some example program regarding it. pls

[ES]

%%IMPORTANT: Not tested as I dont have MATLAB in my PC now!

[~,ListofImages]=dos('dir   /b /s *.jpg');
FileIndexes=[0,strfind(ListofModels,'.jpg')+4];
RegExFileName = '[0-9]+_new'; 

for loop1 = 1:length(FileIndexes)-1;
    FileFullName_Old=ListofModels(FileIndexes(loop1)+1:FileIndexes(loop1+1)-1);
    [FilePath,FileName,~]=fileparts(FileFullName_Old);
    [~,StartIdx]=regexpi(FileName, RegExFileName , 'match');
    FileIndx = FileName(1:end-4);
    FileIndx = str2num(FileIndx);
    NewFileName = ['tour',num2str(FileIndx),'_pictures'];
    FileFullName_New=fullfile(FilePath,NewFileName);
    movefile(FileFullName_Old,FileFullName_New);

end

Answer 2

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F