20 designing some impercitible data hiding methodologies using steganographic techniques

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					           DESIGNING SOME IMPERCITIBLE DATA HIDING
   METHODOLOGIES USING STEGANOGRAPHIC TECHNIQUES
                                      ABSTRACT


Data hiding is the process of embedding the secret data in cover image by making
small modification to its pixels. The different methods of steganography are mostly
applied on image files to embed the secret data. All this methods replace the some
parts of the chosen pixels. Due to this only small data can be embedded in cover
image otherwise; a large embedding changes the cover image originality. So, one
has to compromise either in size of the secret data or in the visual quality of cover
image. This paper presents a new methodology for embedding a large embedding
data with very small changes in respectively small cover image. Based on this
method, we have constructed set go image creator and secret data viewer in
Microsoft platform.


The growing demand of internet need to store, send or receive personal
information. The common approach is to transform the data in different form so
that the resultant data can be understood only by those who get it back into its
original form. The technique is known as encryption. The major drawback of this
method is that the existence of data is not hidden. If someone gives enough time
then he may get the unreadable encrypted data in its original form. The concept of
steganography is considerably been given much attention in recent years in order
to overcome such type of problems. The primary aim of steganography is to hide
the data in a cover media so that other will not notice. The characteristics of cover

#304,DV Arcade, Opp. Agrawala Sweets, Street No. 10, Himayath Nagar, Hyderabad- 500 029
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media depends on the volume of data that can be hidden, the perceptibility of the
message and its robustness.




#304,DV Arcade, Opp. Agrawala Sweets, Street No. 10, Himayath Nagar, Hyderabad- 500 029
                                      Ph: 040-3242 8143.

				
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posted:9/11/2012
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