from transformers import pipeline

# Load once
detector = pipeline(
    "object-detection",
    model="facebook/detr-resnet-50",
    device=-1  # CPU)
)

def detect_objects(image, threshold=0.7):
    results = detector(image)
    filtered = [r for r in results if r["score"] >= threshold]
    labels = list({r["label"] for r in filtered})
    boxes = [
        {"label": r["label"], "score": round(r["score"], 2), "box": r["box"]}
        for r in filtered
    ]
    return labels, boxes