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Automatic License Number Plate Detection (ALNPD) is a critical technology for identifying and processing vehicle registration numbers through image processing techniques. It finds extensive applications in traffic management, law enforcement, and automated toll collection systems. This paper presents an overview of ALNPD, highlighting its significance, methods, challenges, and emerging applications. It delves into the technical methodologies involved in detection, focusing on image preprocessing, localization, segmentation, and Optical Character Recognition (OCR). Furthermore, we discuss the challenges posed by varied lighting conditions, occlusion, and complex backgrounds while exploring future advancements and their potential impact on enhancing the robustness and accuracy of ALNPD systems.
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