Journal of Computing and Informatics Research
Vol 5 No 3 (2026): July 2026

Signature Identification Based on GLCM Feature Extraction and Convolutional Neural Network Classification

Lailan Sofinah Harahap (Universitas Islam Negeri Sumatera Utara, Medan)
Haliza Suci Rachmadini (Universitas Islam Negeri Sumatera Utara, Medan)



Article Info

Publish Date
14 Jul 2026

Abstract

Signature is one of the widely used biometric features for authentication and identity verification purposes. This study proposes a digital signature identification system by combining Gray Level Co-occurrence Matrix (GLCM) feature extraction and Convolutional Neural Network (CNN) classification. The dataset consists of 500 signature images from 50 individuals collected independently. Preprocessing steps include grayscale conversion, adaptive binarization, and image normalization to 128×128 pixels. GLCM texture features are extracted at four angular directions (0°, 45°, 90°, 135°) yielding five main features: contrast, correlation, energy, homogeneity, and entropy. These features are integrated as additional inputs to the fully connected layer of a CNN comprising three convolutional blocks. Experimental results demonstrate that the proposed system achieves a classification accuracy of 96.8%, precision of 96.2%, and F1-Score of 96.5% on test data. These results confirm that integrating GLCM texture features into the CNN architecture significantly improves signature identification performance.

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Journal Info

Abbrev

comforch

Publisher

Subject

Computer Science & IT

Description

Fokus kajian Journal of Computing and Informatics Research mempublikasikan hasil-hasil penelitian pada bidang informatika, namun tidak terbatas pada bidang ilmu komputer yang lain, seperti: 1. Kriptografi, 2. Artificial Intelligence, 3. Expert System, 4. Decision Support System, 5. Data Mining, dan ...