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Deep Learning and Transfer Learning Models of Indian Food Classification
* 1 , 2 , 3 , 4
1  Department of Computer Engineering, Government Polytechnic Bhuj, Bhuj 370001, India
2  Department of Information Technology , R.C Technical Institute, Sola, Ahmedabad - 380060, India
3  Department of Information Technology, Government Polytechnic, Bhuj, 370001, India
4  Department of Computer Engineering, Government Polytechnic Ahmedabad, Ambawadi, Ahmedabad- 380006, India
Academic Editor: Eugenio Vocaturo

Abstract:

This study examines the utilization of deep learning and transfer learning models for classifying photos of Indian cuisine. Indian cuisine, characterized by its extensive diversity and intricate presentation, poses considerable hurdles in food recognition owing to changes in ingredients, texture, and visual aesthetics. To tackle these challenges, we utilized a bespoke Convolutional Neural Network (CNN) and harnessed cutting-edge transfer learning models such as DenseNet121, InceptionV3, MobileNet, VGG16, and Xception. The research employed a varied dataset comprising 13 food categories and executed preprocessing techniques like HSV conversion, noise reduction, and edge identification to improve image quality. Metrics for performance evaluation, including accuracy, precision, recall, and F1-score, were employed to assess model efficacy. The CNN model demonstrated mediocre performance, revealing overfitting concerns due to a substantial disparity between training and validation accuracy. In contrast, transfer learning models, particularly DenseNet121, InceptionV3, and Xception, exhibited enhanced generalization ability, each attaining above 92% accuracy across all criteria. MobileNet and VGG16 produced reliable outcomes with marginally reduced performance. The results highlight the efficacy of transfer learning in food image classification and indicate that fine-tuned, pre-trained models markedly improve classification accuracy. This research advances the creation of intelligent food recognition systems applicable in dietary monitoring, nutrition tracking, and health management.

Keywords: Indian Food, Deep Learning, Transfer Learning, DenseNet, Inception,MobileNet, VGG16, Xception
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