unionpoint/convnextv2small.39diseases

Plant Disease Classification

A robust, configurable deep learning pipeline for plant disease classification using PyTorch. This project leverages timm for a vast array of pre-trained backbones (e.g., EfficientNetV2, ConvNeXtV2, EVA02) and offers advanced training features such as Exponential Moving Average (EMA) for weights, Layer-wise Learning Rate Decay (LLRD), MixUp/CutMix data augmentation, and Weights & Biases (W&B) integration for experiment tracking.

• Web Interface:
• REST API Documentation: s

Features

• Extensive Model Support: Easily swap backbones by changing the config, enabled by integration with timm.
• Advanced Training Techniques:
  • Model EMA (Exponential Moving Average) to stabilize training and improve generalization.
  • Layer-wise Learning Rate Decay (LLRD) for optimal fine-tuning of transformer and CNN architectures like vit, convnextv2.
  • Mixed Precision Training for faster execution and lower memory footprint.
  • Gradient Accumulation.
• Data Augmentation: MixUp and CutMix integrations for regularization.
• Customizable Configuration: Highly modular experiment setups using omegaconf (YAML config files).
• Experiment Tracking: Full integration with Weights & Biases logging everything from hyperparameter configs to validation metrics.

Results

Model	mAP	Accuracy
EfficientNetV2 Small	0.87	0.815
DINOv3 ViT Small Plus	0.91	0.830
ConvNeXtV2 Tiny	0.94	0.860

Project Structure

Plant-Disease-Classification/
├── configs/
│   └── config.yaml          # Main configuration file
├── data/
│   ├── train/               # Train data (organized by class folders)
│   └── val/                 # Val data (organized by class folders)
├── src/
│   ├── dataset.py           # Dataloaders and augmentation logic
│   ├── infer.py             # Inference script and prediction utilities
│   ├── loss.py              # Loss functions (CrossEntropy, Focal Loss)
│   ├── metrics.py           # Metric calculations
│   ├── models.py            # Model definitions and param groupings
│   ├── trainer.py           # Core training loop
│   └── utils.py             # Helpers (schedulers, seeds, config loading)
├── train.py                 # Main entrypoint for training
└── requirements.txt         # Project dependencies

Quick Start

1. Environment Setup

It is highly recommended to use uv for fast, reliable package management.

# Create a virtual environment using uv
uv venv

# Activate the environment
source .venv/bin/activate  # Linux/MacOS

# Install dependencies rapidly
uv pip install -r requirements.txt

2. Prepare Data

Ensure your dataset is arranged in PyTorch ImageFolder format. Place the training data in data/train and validation data in data/val. Each subplot or leaf should be in its corresponding disease or health category folder.

data/
└── train/
    ├── Apple scab/
    └── ...

3. Provide Configuration

Modify the hyperparameters, model choices, and paths inside configs/config.yaml.

4. Train the Model

Run the training pipeline:

python train.py --config configs/config.yaml

Resuming Training: To resume from an existing checkpoint, pass the --resume argument:

python train.py --config configs/config.yaml --resume checkpoints/checkpoint.pth

To load weights for a warm start (e.g., finetuning), use:

python train.py --config configs/config.yaml --init_weights weights/pretrained.pth

5. Inference

You can run inference on a single image using the src/infer.py script. The script requires a serialized TorchScript model checkpoint.

# Basic inference
python src/infer.py --image_path path/to/leaf.jpg --checkpoint checkpoints/best_model.pt --image_size 384

# Inference with Test Time Augmentation (TTA)
python src/infer.py --image_path path/to/leaf.jpg --checkpoint checkpoints/best_model.pt --image_size 384 --tta

Note: The inference script expects a data/label_map.json file to map class indices to disease names.

Documentation

Model Selection

By default, the pipeline uses timm.create_model(...). You can specify any model architecture available in timm (e.g. convnextv2_base, efficientnet_b0, eva02_base_patch14_448) directly in the config.yaml file under model.backbone.

Configuration Details

The pipeline uses OmegaConf. Hyperparameters such as loss, optimizer, and augmentation can be tweaked. For example, to enable layer-wise learning rate decay, adjust optimizer.layer_decay to a value < 1.0.

Logging & Checkpoints

• Checkpoints are saved under the checkpoints/ directory (customizable via logging.checkpoint_dir).
• Best model checkpoints (current and EMA) are tracked based on the monitored validation metric.
• When logging.use_wandb is true, the script initializes a Weights & Biases run, logging train/validation losses and selected metrics seamlessly.

Model Weights

---

The trained weights are hosted on Hugging Face

• 🔗 Download from Hugging Face Space Files

Technical Report

A comprehensive report results is included in the repository.

View Technical Report (PDF)