Discrete Wavelet Transform(DWT) has become very popular as the basis of many recent image processing and compression techniques and has been adopted by new image compression standard

i.e.

JPEG2000.The conventional convolution based DWT is computationally intensive.Such drawbacks can be overcome by using the lifting based scheme for the DWT.We presented a novel hardware structure for lifting based wavelet transform in JPEG2000.The hardware structure improves memory/speed tradeoff.Its computation speed is high and memory requirement is low.The complexity of datapath is reduced and the efficency of the system is improved by implementing the function of edge extension outside of data path.In the datapath design

we used pipeline technique to further improve the efficiency of the design.