Real-Time DSP-Based License Plate Character Segmentation Algorithm Using 2D Haar Wavelet Transform

The potential applications of Wavelet Transform (WT) are limitless including image processing, audio compression and communication systems. In image processing, WT is used in applications such as image compression, denoising, speckle removal, feature analysis, edge detection and object detection. The use of WT algorithms in image processing for real-time custom applications may require dedicated processors such as Digital Signal Processor (DSPs), Field Programmable Gate Arrays (FPGAs) and Graphics Processing Units (GPUs) as reported in (Ma et al., 2000), (Benkrid et al., 2001) and (Wong et al., 2007) respectively.