A Phenotypic Approach for Guava fruit Disease Detection and Classification Using Computer Vision-Based Techniques

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Volume 6 Issue 1, 2025

Author(s):

Saima Shoro Shah Abdul Latif University, Khairpur, shorosaima@gmail.com

Hidayatullah Shaikh Shah Abdul Latif University, Khairpur, hidayat.shaikh@salu.edu.pk

Ghulam Ali Mallah Shah Abdul Latif University, Khairpur, ghulam.ali@salu.edu.pk

Abstract We developed an end-to-end, vision-based framework for automated phenotypic screening of four major guava fruit diseases: Anthracnose, Botryodiplodia Rot, Guava Fruit Canker, and Phytophthora Fruit Rot. Our pipeline integrates classical image processing (segmentation, noise reduction, normalization) with a purpose-built lightweight CNN architecture for real-time classification. Trained and validated on a curated dataset of 6,800 labeled field images, the model achieved 92.5% accuracy – outperforming RF (88.2%) and SVM (85.5%) baselines. Critically, it demonstrated exceptional robustness across precision (93.1±0.7), recall (91.8±1.2), and F1-score (92.4±0.9) metrics, minimizing false negatives critical for early detection. Notably, the system exhibits superior adaptability to variable lighting/field conditions versus existing SOTA approaches. This scalability positions it as a viable tool for precision agriculture, directly addressing key pain points: early pathology diagnosis (~48hrs faster than manual scouting), yield preservation (+15–22% in trials), and sustainable production via reduced fungicide use.
Keywords Guava disease detection, digital image processing, convolutional neural network, precision agriculture, machine learning.
Year 2025
Volume 6
Issue 1
Type Research paper, manuscript, article
Recognized by Higher Education Commission of Pakistan, HEC
Category
Journal Name ILMA Journal of Technology & Software Management
Publisher Name ILMA University
Jel Classification --
DOI -
ISSN no (E, Electronic) 2790-590X
ISSN no (P, Print) 2709-2240
Country Pakistan
City Karachi
Institution Type University
Journal Type Open Access
Manuscript Processing Blind Peer Reviewed
Format PDF
Paper Link https://ijtsm.ilmauniversity.edu.pk/arc/Vol6/i1/pdf2.pdf
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