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FPGA Implementation of Transform based Advanced Encryption Technique for Visual Cryptography


Author(s):

Shweta Modi , vtu belagavi; Dr. Meghana. Kulkarni, vtu belgavi

Keywords:

FPGA, Image Steganography, LSB Technique, Wavelet Transform, Key sharing etc

Abstract:

The main aim of the paper is to investigate the hardware performance and effect of peak signal to noise ratio (PSNR) values for digital images using DWT based steganography technique. The proposed system is designed with an efficient secured algorithm for enhancing the visual quality. The cover image is resized and applied to DWT to obtain four bands such as LL, LH, HL and HH. Similarly the message image is repeated with same process to obtain four bands. The values of LL band of cover and LL band of message image are fused with LSB technique, later IDWT is applied to obtain stegano image. In decoding the same process is reversed to obtain the message image. Further we design an efficient VLSI architecture for the above algorithm and the performance parameters such as area, speed and PSNR are analyzed. To design an efficient VLSI architecture the sub modules are combined and pipelining is done by using single clock in order to enhance the performance of the system in terms of speed and area.


Other Details:

Manuscript Id :IJSTEV2I12239
Published in :Volume : 2, Issue : 12
Publication Date: 01/07/2016
Page(s): 510-514
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