models/vari_detector.py

import cv2

def run(frames):
    results = []
    for frame in frames:
        annotated = frame.copy()
        cv2.putText(annotated, "Vegetation Index (VARI)", (10, 40), cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 0, 0), 2)
        results.append(annotated)
    return results