Novel Edge Mapping for License Plate Detection
Suprava Patnaik, Chirag N. Paunwala, Mirah Shah, Sulay Shah · 2011
License Plate Detection plays an important role in traffic security and accessing owner's information. Contrast enhancement is essential to improve signal to noise ratio in detection of License Plate. Here we introduce a new approach of edge enhancement for enhancing license plates after improving the contrast by using Contrast Limited Adaptive Histogram Equalization. This method can be used for better edge analysis of degraded images and is very robust to intensity variation due to speckle noise arisen out of coherent summation of reflections associated with night capturing. Results with different conventional methods are compared at the end.