Fast Discrete Wavelet Transformation Daubechies-Four Architecture
Akhmad Mulyanto, Dani Fitriyanto, Tati Rajab Mengko, Armein Z. R. Langi · 2005
A DSP engine for discrete wavelet transformation (DWT)is introduced in this paper. Serial processing DWT architecture provides a better speed and efficiency, makes DWT better choice for image processing than DCT. A dedicated hardware DWT architecture attached to a general purpose microprocessor provided the programmability of data access make possible for dynamic scheduling for various DSP applications.This architecture also has expandabilityfor new processor. Image compression based on block data contains64 pixels for one block. Because of the bandwidth of memory, speed offastest DCT processing still limited. For example, DCT with 8parallel multiplierswith 64cycles