Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Vol. 15 No. 2 (2026): April 2026

Severity Level Classification of Bacterial Leaf Blight Disease (Xanthomonas oryzae) in Rice Plants (Oryza sativa L.) Based on VARI Image Processing

Rafi Dwi Nugraha (Universitas Pembangunan Nasional "Veteran" Jawa Timur)
Hery Nirwanto (Universitas Pembangunan Nasional "Veteran" Jawa Timur)
Sri Wiyatiningsih (Universitas Pembangunan Nasional "Veteran" Jawa Timur)



Article Info

Publish Date
17 Apr 2026

Abstract

Bacterial leaf blight (BLB) caused by Xanthomonas oryzae is one of the main diseases threatening rice productivity in Indonesia. This study aims to classify the severity of BLB in rice plants more effectively using drone-based image processing technology with the VARI (Visible Atmospherically Resistant Index) vegetation index approach. The study was conducted in Wonoayu Subdistrict, Sidoarjo Regency, covering an area of 17 hectares using a DJI Phantom 4 Pro drone equipped with an RGB camera for image acquisition. The data was then analysed through pre-processing, segmentation using the K-Means Clustering method and edge detection, and classification using the Convolutional Neural Network (CNN) algorithm. The results showed that the CNN classification model was able to identify five levels of attack (healthy, mild, moderate, severe, and dead) with an accuracy of 82.25%, and the classification map was able to distinguish the spatial distribution of the disease in agricultural land. This model also showed better performance than conventional monitoring methods. The use of VARI-based image processing from drones has proven effective as an early disease detection method, providing precise solutions for rice plant health management.

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Journal Info

Abbrev

JTP

Publisher

Subject

Agriculture, Biological Sciences & Forestry Engineering

Description

Jurnal Teknik Pertanian Lampung or Journal of Agricultural Engineering (JTEP-L) is a peer-reviewed open-access journal. The journal invites scientists and engineers throughout the world to exchange and disseminate theoretical and practice-oriented researches in the whole aspect of Agricultural ...