Klasifikasi Citra Berbasis Hybrid ResNet50–Broad Learning System pada Penyakit Daun Sawi Hijau
DOI:
https://doi.org/10.54065/artificial.2009Keywords:
Broad Learning System, Deep Learning, Klasifikasi Citra, Penyakit Daun Sawi Hijau, ResNet50Abstract
Penyakit pada daun sawi hijau dapat menurunkan kualitas tanaman, sementara identifikasi berdasarkan gejala visual secara manual berpotensi mengalami kesalahan, terutama pada penyakit yang memiliki karakteristik gejala serupa. Penelitian ini bertujuan mengembangkan dan mengevaluasi model hybrid ResNet50–Broad Learning System (BLS) untuk mengklasifikasikan citra daun sawi hijau ke dalam tiga kelas, yaitu bercak daun, busuk daun, dan daun sehat. Data yang digunakan berjumlah 1.937 citra yang diperoleh dari Kaggle, terdiri atas 1.173 citra data latih, 414 citra validasi, dan 350 citra uji. Tahapan penelitian meliputi preprocessing, augmentasi citra, ekstraksi fitur menggunakan ResNet50 dengan bobot ImageNet, standardisasi fitur menggunakan StandardScaler, dan klasifikasi menggunakan BLS. Kinerja model dievaluasi menggunakan akurasi, precision, recall, F1-score, dan confusion matrix. Hasil pengujian terhadap 350 citra menunjukkan bahwa model mencapai akurasi sebesar 94% dengan macro average F1-score sebesar 0,94. Kelas daun sehat memperoleh F1-score tertinggi sebesar 0,98, sedangkan kelas bercak daun dan busuk daun masing-masing memperoleh F1-score sebesar 0,91 dan 0,92. Kesalahan klasifikasi terutama terjadi antara kelas bercak daun dan busuk daun. Hasil tersebut menunjukkan bahwa kombinasi ResNet50–BLS mampu memberikan kinerja klasifikasi yang baik dan berpotensi mendukung identifikasi penyakit daun sawi hijau berbasis citra.
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