[WM]: few quetions

[rajesh kumar <rajess_kumar@yahoo.co.in>]

    sir,
          I would like to ask few questions and expect quick reply for these questions,were are doing our project in water
markingtechnology for secure transmission,so please help me and my friends.
   
    1. whats the difference between cryptography,steganography and  water marking techniques?( in detail)
  2.i would like to know different types of algorithms used for watermarking technique?
  3.can u specify the optimum technique(with less biterror rate and more security)?
   
                  waiting for ur reply,please reply me at rajess_kumar@yahoo.co.in
   
                                                                     yours truely,
   
                                                                        rajesh




RAJ



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