Multilevel Information Security in multimedia environment using Frequency domain transformation

  Prasenjit Maji,  Dipsha Nandy,  Moumita Pal

Due to rapid advancement in communication Security has become real concern. Thus to fulfill this requirement the information should be protected in such a way so that its presence should not be felt by anyone except the receiver. Steganography restricts the access to the unauthorized users. This method considers any text, image, voice, video as cover image. This paper approaches towards securing information exchange over the internet using image processing. In this proposed method the technique wavelet transformation is used along with cryptography and Steganography, where information contained text file is hidden inside a video frame or image without causing any distortion in the quality of that. The frames are transformed by discrete wavelet transform, where both the frame with and without noise exist. The message is carefully hidden into the noisy channels of image. Reconstruction of the stego image is done by inverse DWT. After receiving the stego video it need to be transformed by DWT again for segregation. Lastly the extraction of secured information contained text file is done by the receiver. Due to multilevel encryption, the hidden information remains highly secured compared to other methods.

Keywords- DWT, Steganography, Stego image, security .

Unique Identification Number - IJEDR2002064
Page Number(s) - 384-388
Pubished in - Volume 8 | Issue 2 | April 2020
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Prasenjit Maji,  Dipsha Nandy,  Moumita Pal,   "Multilevel Information Security in multimedia environment using Frequency domain transformation", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.8, Issue 2, pp.384-388, April 2020, Available at :http://www.ijedr.org/papers/IJEDR2002064.pdf