Digital Watermarking Using Reconfigurable DWT |
Author(s): |
| JAYA VIRWANI , GUJARAT TECHNOLOGICAL UNIVERSITY |
Keywords: |
| DWT, IDWT, Direct Mapped Architecture, Reconfigurable Computation, Lifting Based Scheme, Digital Watermarking, Alpha blending. |
Abstract |
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This paper surveys the various VLSI architectures recently developed to implement lifting based scheme of DWT. The basic principle behind the lifting scheme DWT is it decomposes the finite impulse response filters in wavelet transform into a finite sequence of simple filtering steps. The main hazards faced in image processing are speed, computational complexities and memory requirements. This paper tries to obtain such an architecture which focuses all three tradeoffs i.e., speed, memory requirement and computational complexities. The architecture proposed in this paper includes lifting based scheme DWT which is implemented using Direct Mapped Architecture and then it is reconfigured so that same RM(Reconfigurable Module) of FPGA will be occupied by Reconfigurable IDWT module. Digital Watermarking is achieved using Alpha Blending Technique. |
Other Details |
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Paper ID: IJSRDV2I3014 Published in: Volume : 2, Issue : 3 Publication Date: 01/06/2014 Page(s): 532-535 |
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