Comparison Study of Steganographic Technique using Integer Wavelet Transform Domain and Discrete Wavelet Transform Domain
Abstract
Now a days data transfer over internet is the main problem. Information security is one of the possible areas of research in present days. The data needs to be kept secure. So that it could be accessed by only authorized user. So that the data needs to be sent in a secure way which the receiver should be able to understand the message. In information hiding, cryptography and steganography are the most widely used areas that come to mind for sending sensitive and private information in a secured manner. The limitation of cryptography is that other person came to know that the probability of message being decoded by other structure of the hidden message. To overcome this limitations we use a technique is called steganography. Steganography means secret writing. It means hiding secret information in specific carrier data. The steganography plays an important role to hide data in such media which is audio, video, text, image etc. This paper implements image steganography with an objective of improve security and allocating maximum amount of data to be hidden inside. To achieve this initially cover image is transformed from spatial domain to frequency domain using 2D wavelet transformed image allowing embedding inside high frequency region which maintains image quality. In this paper we applying 2D HAAR technique in cover image for decomposition and Huffman encoding technique for embedding the secret message and use a encryption key for better security. In existing paper there are used dwt technique but there are some problem. So in this paper we use IWT for hiding secret data using some algorithm and calculate the signal to noise ratio and mean square error.
How to cite this article:
Biswal SK. Comparison Study of Steganographic Technique using Integer Wavelet Transform Domain and Discrete Wavelet Transform Domain. J Engr Desg Anal 2020; 3(2): 13-18.
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