Files not read in correct order

Hi! So i am having a problem. I am reading a number of files from a directory in Matlab. The file are named as crop1.jpg crop2.jpg....... The issue is that Matlab doesn't read them like crop1.jpg crop2.jp and so on rather it read it like crop1.jpg crop10.jpg crop11.jp....Seems like reading all the files starting with 1 then all the with 2 like crop2.jpg crop21 crop22... and so on I don't understand what is going wrong. Below is my code. any help will be appreciated

    imageNames = dir(fullfile('Test Images/*.jpg'));
nfiles= length(imageNames);
for ii = 1:nfiles     
      filename = strcat('/Users/name/Documents/Test Images/',imageNames(ii).name);
      frame= imread(filename);
       imshow(BWframe)
end

Answer 1

[Image Analyst]

See discussion here http://blogs.mathworks.com/pick/2014/12/05/natural-order-sorting/ of Stephen Cobeldick's utility.

[BlueBee77]

That solved my problem. Thanks alot Image analyst.