/** 
  @mainpage 
 
  @section intro_sec Introduction
 
    This project allows any data file to be hidden into a 24-bit bitmap.
    Each byte of the data file is split amongst a pixel in the bitmap. Each 
    colour component (Red, Green and Blue) shares 2-3 bits in their least
    significant bytes. Information can be encoded and decoded with this via
    arguments at execution.
 
  @section usage_sec Usage
 
    To encode a file pass in the bitmap to copy and the file containing the 
    desired information to hide.
    <CODE> \n
    ./executable <bitmap_to_duplicate> <data> 
    \n </CODE>
    To decode a file just pass in the bitmap containing the hidden information. 
    <CODE> \n
    ./executable <bitmap_with_info> 
    \n </CODE>

  @section Todo

    There are two main features that are missing from this program:
    -  Some form of password encryption could protect the data. (Of course
       currently this could be handled by a third party application before this 
       program is run.)
    -  A better method to "spread" the data throughout the bitmap. Currently 
       one byte of data is stored to one pixel but ideally this should vary 
       depending on the sizes of the data and bitmap.

  @section li_sec License
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

 
*/