Automatic License Plate Recognition (ALPRON) Using Optical Character Recognition Method
DOI:
https://doi.org/10.30871/jaic.v9i3.9903Keywords:
ALPRON, ANPR, Image Processing, OCR, Smart ParkingAbstract
Manual parking systems are prone to inefficiencies and human error, especially with increasing vehicle density. This study proposes ALPRON, an automatic license plate recognition system using Optical Character Recognition (OCR) to automate motorcycle parking management. The system integrates Raspberry Pi 4, USB cameras, and Tesseract OCR to detect and recognize license plates in real-time. Performance testing was conducted under varying distances, lighting intensities, and camera angles. The results show that the system achieves a peak recognition accuracy of 98.75% at 70 cm, in bright lighting, and a 0° camera angle. These findings suggest that ALPRON is a potentially cost-effective and efficient solution for smart parking applications, particularly in controlled campus environments. While current limitations include daylight dependency and difficulty recognizing skewed angles plates, future improvements will address these through infrared support and deep learning enhancements.
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[1] A. Michael and U. Kristen Tentena, “Pengenalan Plat Kendaraan Berbasis Android Menggunakan Viola Jones Dan Kohonen Neural Network,” ILKOM Jurnal Ilmiah, vol. 8, no. 2, 2016.
[2] Sugeng and E. Y. Syamsuddin, “Designing Automatic Number Plate Recognition (ANPR) Systems Based on K-NN Machine Learning on the Raspberry Pi Embedded System,” vol. 5, no. 1, pp. 19–26, 2019, doi: 10.24036/jtev.v5i1.1.106135.
[3] S. Sheeba, R. Gnanamalar, R. Maheswari, B. Sharmila, and V. Gomathy, “IoT Driven Vehicle License Plate Extraction Approach,” International Journal of Engineering & Technology, vol. 7, no. 2, pp. 457–459, 2018, [Online]. Available: https://ssrn.com/abstract=3223392
[4] S. Du, M. Ibrahim, M. Shehata, and W. Badawy, “Automatic License Plate Recognition (ALPR): A State-of-the-Art Review,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 23, no. 2, pp. 311–325, 2013, doi: 10.1109/TCSVT.2012.2203741.
[5] C. N. E. Anagnostopoulos, I. E. Anagnostopoulos, V. Loumos, and E. Kayafas, “A License Plate-Recognition Algorithm for Intelligent Transportation System Applications,” IEEE Transactions on Intelligent Transportation Systems, vol. 7, no. 3, pp. 377–392, 2006, doi: 10.1109/TITS.2006.880641.
[6] A. Solichin and Z. Rahman, “Identifikasi Plat Nomor Kendaraan Berbasis Mobile dengan Metode Learning Vector Quantization,” Jurnal TICOM, vol. 3, no. 3, pp. 1–7, May 2015.
[7] J. Ranglani and V. Lachwani, “Automatic Number Plate Recognition (ANPR),” SSRG International Journal of Computer Science and Engineering (SSRG-IJCSE, vol. 3, no. 8, pp. 64–68, Aug. 2016, [Online]. Available: www.internationaljournalssrg.org
[8] Y. Shambharkar, S. Salagrama, K. Sharma, O. Mishra, and D. Parashar, “An Automatic Framework for Number Plate Detection using OCR and Deep Learning Approach,” IJACSA) International Journal of Advanced Computer Science and Applications, vol. 14, no. 4, pp. 8–14, 2023, [Online]. Available: www.ijacsa.thesai.org
[9] S. Bhahri and Rachmat, “Transformasi Citra Biner Menggunakan Metode Thresholding Dan Otsu Thresholding,” Jurnal Sistem Informasi Dan Teknologi Informasi, vol. 7, no. 2, pp. 195–203, Oct. 2018.
[10] R. Simbolon, P. Prasetyawan, N. Saputri Utami, T. Elektro, and I. Teknologi Sumatera, “Sistem Pemantauan Kendaraan Parkir Berbasis Mobile Programming,” Jurnal Ilmiah Sistem Informasi Akuntansi (JIMASIA), vol. 5, no. 1, pp. 37–46, 2025, doi: 10.33365/jimasia.v5i1.376.
[11] E. Kavneet Kaur and V. Kumar Banga, “Number Plate Recognition Using Ocr Technique,” IJRET: International Journal of Research in Engineering and Technology, vol. 2, no. 9, pp. 286–290, Sep. 2013, [Online]. Available: http://www.ijret.org
[12] P. F. Tsai, J. Y. Shiu, and S. M. Yuan, “A Deep Learning Framework of Super Resolution for License Plate Recognition in Surveillance System,” Mathematics, vol. 13, no. 10, May 2025, doi: 10.3390/math13101673.
[13] K. S. Ravichandran, “Estimation of Automatic License Plate Recognition Using Deep Learning Algorithms,” Spectrum of Decision Making and Applications, vol. 2, no. 1, pp. 100–119, Jan. 2025, doi: 10.31181/sdmap21202512.
[14] K. Deepa Thilak, R. Raju, T. Navaneetha, J. Armidasylvia, and A. Professor, “Vehicle License Plate Estimation Techniques: A Comparitive Study,” 2020. [Online]. Available: www.ijcrt.org
[15] S. Zherzdev and A. Gruzdev, “LPRNet: License Plate Recognition via Deep Neural Networks,” Jun. 2018, [Online]. Available: http://arxiv.org/abs/1806.10447
[16] U. Kompalli and S. Kavuri, “Automatic Number Plate Recognition-SMART Security check,” International Journal for Multidisciplinary Research, vol. 5, no. 4, Jul. 2023, [Online]. Available: www.ijfmr.com
[17] M. A. Nafis, A. Bora, S. Karn, A. Ali, and V. Trivedi, “Automatic Number Plate Recognition using YOLOv11,” International Journal of Computer Techniques, vol. 12, no. 3, pp. 1–5, May 2025, [Online]. Available: https://ijctjournal.org/
[18] R. Laroca, L. A. Zanlorensi, G. R. Gonçalves, E. Todt, W. R. Schwartz, and D. Menotti, “An efficient and layout-independent automatic license plate recognition system based on the YOLO detector,” IET Intelligent Transport Systems, vol. 15, no. 4, pp. 483–503, Apr. 2021, doi: 10.1049/itr2.12030.
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Copyright (c) 2025 Purwono Prasetyawan, Muhammad Athallah Cahya Aulia, Nia Saputri Utami, Uri Arta Ramadhani

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