RABIT: Jurnal Teknologi dan Sistem Informasi Univrab
Vol 10 No 2 (2025): Juli

KLASIFIKASI ANTRAKNOSA DAN BUAH BUSUK PADA CITRA CABAI RAWIT MENGGUNAKAN METODE MOBILENETV2 DENGAN SVM: CLASSIFICATION OF ANTHRACNOSE AND FRUIT ROT IN BIRD’S EYE CHILI IMAGES USING MOBILENETV2 WITH SVM

Anas Chairudin Satyo Nugroho (Mercu Buana University of Yogyakarta)
Ozzi Suria (Mercu Buana University of Yogyakarta)



Article Info

Publish Date
10 Jul 2025

Abstract

Bird’s eye chili (Capsicum frutescens L.) is one of Indonesia’s key horticultural commodities, yet it is highly susceptible to diseases such as anthracnose caused by Colletotrichum spp. fungi and fruit rot due to fruit fly (Bactrocera sp.) infestations. Visual similarities between early and advanced symptoms often hinder manual identification, which can lead to misdiagnosis and the excessive use of pesticides. This study aims to develop an image classification system based on machine learning to distinguish between three chili conditions: healthy, infected with anthracnose, and rotten. The proposed model combines the MobileNetV2 architecture as a feature extractor with a Support Vector Machine (SVM) using a linear kernel as the classifier. The dataset consists of 1,020 field-captured images evenly distributed into three classes (340 per class) and split into training (70%), validation (15%), and testing (15%) sets. Preprocessing steps include background removal, resizing, normalization, and image augmentation. Features are extracted using MobileNetV2 without its final classification layer and used as input for the SVM model. Evaluation results show a validation accuracy of 98% and perfect testing accuracy of 100%, with precision, recall, and F1-score also reaching 100% across all classes. These findings indicate that the hybrid approach is highly effective in detecting chili diseases automatically from images. Furthermore, the system has the potential to help farmers avoid incorrect pesticide use, reduce production costs, and improve crop quality and yield.

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Journal Info

Abbrev

rabit

Publisher

Subject

Computer Science & IT Engineering

Description

This journal is called RABIT, where the name comes from two words namely, RAB which means Abdurrab University and IT which means information technology, it can be interpreted as a journal of this journal Journal of Informatics Engineering Study Program Pekanbaru Abdurrab University. This RABIT ...