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All Journal International Journal of Electrical and Computer Engineering
Wachiraporn Polpanumas
Rajamangala University of Technology Suvarnabhumi
Computer Science & IT Electrical & Electronics Engineering

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A comparative study of baseline convolutional neural network and ResNet50 for image-based tomato leaf disease classification Sumana Budsabok; Wachiraporn Polpanumas; Piyanan Khongphai
International Journal of Electrical and Computer Engineering (IJECE) Vol 16, No 4: August 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v16i4.pp1876-1884

Abstract

Image-based techniques are widely used in plant disease classification to support agricultural productivity and facilitate early detection. This study presents a comparative analysis between a baseline convolutional neural network (CNN) and a ResNet50-based transfer learning model for tomato leaf disease classification. A publicly available dataset containing five categories—tomato bacterial spot, tomato late blight, tomato septoria leaf spot, tomato yellow leaf curl virus, and healthy leaves—was used in the experiments. Model performance was evaluated using several standard classification metrics, with emphasis on overall accuracy. The baseline CNN achieved an accuracy of 97.0%, whereas the ResNet50 model reached 99.6%. The results demonstrate that the ResNet50 model produces more stable and reliable predictions, particularly when distinguishing between visually similar disease classes. These findings confirm that transfer learning can effectively improve classification performance in plant disease recognition tasks.
Co-Authors Piyanan Khongphai Sumana Budsabok