JOURNAL OF APPLIED INFORMATICS AND COMPUTING
Vol. 10 No. 5 (2026): October 2026

Extraction of Transaction Information on Handwritten Notes Using Optical Character Recognition (OCR) and Named Entity Recognition (NER)

Meyry Ardianti (Universitas Bunda Mulia)
Puguh Hiskiawan (Universitas Bunda Mulia)



Article Info

Publish Date
06 Oct 2026

Abstract

Handwritten notes remain widely used as transaction proofs, yet extracting information from them automatically is challenging due to variations in handwriting styles, layouts, and image qualities. This research aims to develop a transaction information extraction method for handwritten notes by integrating Optical Character Recognition (OCR) and Named Entity Recognition (NER). The research stages include image preprocessing using grayscale conversion, denoising, and Contrast Limited Adaptive Histogram Equalization (CLAHE), text recognition using EasyOCR across multiple image orientations, and transaction entity identification using IndoBERT with the BIO scheme. OCR performance is evaluated using Character Error Rate (CER) and Word Error Rate (WER), while NER is evaluated using Accuracy, Precision, Recall, and F1-score. Test results show that the NER model achieved an Accuracy of 0.8889, Precision of 0.7857, Recall of 0.8462, and F1-score of 0.8148 on the test data. However, the OCR-NER integration still exhibits character recognition errors and fails to completely extract all transaction attributes, particularly PRICE and AMOUNT. These findings indicate that the OCR-NER integration holds potential for supporting transaction data digitization in handwritten notes, though improving OCR quality and using a larger dataset are necessary to enhance system accuracy and generalizability.

Copyrights © 2026






Journal Info

Abbrev

JAIC

Publisher

Subject

Computer Science & IT

Description

Journal of Applied Informatics and Computing (JAIC) Volume 2, Nomor 1, Juli 2018. Berisi tulisan yang diangkat dari hasil penelitian di bidang Teknologi Informatika dan Komputer Terapan dengan e-ISSN: 2548-9828. Terdapat 3 artikel yang telah ditelaah secara substansial oleh tim editorial dan ...