Information Technology Journal1812-56381812-5646Asian Network for Scientific Information10.3923/itj.2020.1.11Samson OjoOgunlereChigozirimAjaegbuDaniel OluwaninyoOladejo12020191Background and Objective: Existing implementations of wavelet-based image filtering architecture shad design complexities which translated to implementation complexities and low clock frequency. As a result, they failed to meet the requirement for real-time applications. Implementation of image filtering cannot be separated from optimization, hence, optimizations must be continually devised to meet real-time requirements of wavelet-based image filtering. This research aimed at the optimization of existing wavelet-based hardware architecture for embedded image filtering. Materials and Methods: This work presents a two-dimensional (2-D) discrete wavelet transform (DWT) architectural design using Verilog Hardware Description Language (Verilog HDL). To reduce implementation complexities, a basic linear algebra approach is used for the Haar transform. A register transfer level (RTL) optimization is proposed to shorten the worst-case filter path delay, thus increasing the maximum operating frequency. Validation of the proposed optimization involved, the design of a circuit for the DWT computation, simulation and implementation in field programmable gate array (FPGA). Results: Result achieved shows substantial decreased hardware cost, high signal-to-noise ratio (SNR) and high operating frequency when compared to the existing works used as benchmark. Conclusion: This work validates that compensating for the filtering delay in a multi-level wavelet-based image filtering architecture can optimize speed and resource utilization while obtaining a high SNR.]]>Hasan, K.K., K.J. Ali and M.A. Dhan,2018Jeon, B., S. Lee, J. Jin, D.D. Nguyen and J.W. Jeon,2013Kanithi, A.,2011Kamarujjaman, M. Mukherjee and M. Maitra,2015Hidayat, R., S. Aji and Litasari,2014León, M., L. Barba, L. Vargas and C.O. Torres,2011Huang, Q., Y. Wang and S. Chang,2011Hsieh, C.F., T.H. Tsai, C.H. Lai and S.C. Yi,2013Basheer, N.M. and M.M. Mohammed,2013Ashok, C. and V.S. Anu,2015Khan, G.F. and A.G. Sawant,2016Ramesha, K.P., K.V. Ramanareddy and S. Yellampalli,2016Chuma, E.L., L.G.P. Meloni, Y. Iano and L.L.B. Roger,2017Sripathi, D.,2003Ergen, B.,2012Satpathy, S., M.C. Pradhan and S. Sharma,2015Kaur, S.,2015