Plant Disease Detection - ResNet50

A pre-trained ResNet50 model for detecting plant diseases from leaf images, optimized for FastAPI deployment.

Model Description

• Architecture: ResNet50
• Parameters: 23.6 million
• Model Size: 91 MB
• Accuracy: 95%+ on PlantVillage test set
• Classes: 38 plant disease categories
• License: Apache 2.0

Supported Crops & Diseases (38 Classes)

Maize (Corn) - 4 diseases ✅

• Cercospora leaf spot (Gray leaf spot)
• Common rust
• Northern Leaf Blight
• Healthy

Tomato - 10 diseases ✅

• Bacterial spot
• Early blight
• Late blight
• Leaf Mold
• Septoria leaf spot
• Spider mites
• Target Spot
• Yellow Leaf Curl Virus
• Mosaic virus
• Healthy

Other Supported Crops

• Apple: 4 diseases (scab, black rot, cedar rust, healthy)
• Grape: 4 diseases (black rot, esca, leaf blight, healthy)
• Potato: 3 diseases (early blight, late blight, healthy)
• Pepper: 2 classes (bacterial spot, healthy)
• Cherry, Peach, Strawberry, Orange, etc.

Quick Start

from transformers import AutoModelForImageClassification, AutoImageProcessor
from PIL import Image
import torch

# Load model
model = AutoModelForImageClassification.from_pretrained("mesabo/agri-plant-disease-resnet50")
processor = AutoImageProcessor.from_pretrained("mesabo/agri-plant-disease-resnet50")

# Inference
image = Image.open("plant_leaf.jpg").convert("RGB")
inputs = processor(images=image, return_tensors="pt")

with torch.no_grad():
    outputs = model(**inputs)
    probs = torch.nn.functional.softmax(outputs.logits, dim=-1)
    predicted_idx = probs.argmax(-1).item()
    confidence = probs[0][predicted_idx].item()

print(f"Disease: {model.config.id2label[predicted_idx]}")
print(f"Confidence: {confidence * 100:.2f}%")

FastAPI Integration

from fastapi import FastAPI, File, UploadFile
from transformers import AutoModelForImageClassification, AutoImageProcessor
from PIL import Image
import torch
import io

app = FastAPI()

# Load model at startup
model = AutoModelForImageClassification.from_pretrained("mesabo/agri-plant-disease-resnet50")
processor = AutoImageProcessor.from_pretrained("mesabo/agri-plant-disease-resnet50")
model.eval()

@app.post("/predict")
async def predict(file: UploadFile = File(...)):
    image = Image.open(io.BytesIO(await file.read())).convert("RGB")
    inputs = processor(images=image, return_tensors="pt")
    
    with torch.no_grad():
        outputs = model(**inputs)
        probs = torch.nn.functional.softmax(outputs.logits, dim=-1)
        predicted_idx = probs.argmax(-1).item()
        confidence = probs[0][predicted_idx].item()
    
    return {
        "disease": model.config.id2label[predicted_idx],
        "confidence": round(confidence * 100, 2),
        "status": "success"
    }

Performance

West African Agriculture Note

This model currently supports Maize and Tomato which are important crops in West Africa.

Not yet supported:

• Cassava (most important staple - coming soon)
• Cashew (major cash crop)
• Cocoa (critical for Ghana, Ivory Coast)

For cassava/cashew support, we recommend fine-tuning on the CCMT Ghana dataset.

Training Data

• Dataset: PlantVillage
• Images: 54,305
• Augmentation: Yes
• Resolution: 224x224

Requirements

pip install transformers torch pillow

Citation

@misc{agri-plant-disease-resnet50,
  author = {mesabo},
  title = {Plant Disease Detection - ResNet50},
  year = {2024},
  publisher = {Hugging Face},
  url = {https://huggingface.co/mesabo/agri-plant-disease-resnet50}
}

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License

Apache 2.0 - Commercial use allowed