> For the complete documentation index, see [llms.txt](https://docs.roboflow.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.roboflow.com/roboflow/roboflow-hi/deploy/supported-models/grounding-dino.md).

# Grounding DINO

Grounding DINO एक open-vocabulary object detector है। आप एक image और text classes की एक सूची देते हैं, और model बिना किसी training के matching regions के लिए bounding boxes लौटाता है।

{% hint style="info" %}
Grounding DINO Serverless Hosted API पर उपलब्ध नहीं है। इसे एक पर चलाएँ [Dedicated Deployment](/roboflow/roboflow-hi/deploy/dedicated-deployments.md) या [self-hosted Inference](https://inference.roboflow.com/).
{% endhint %}

## कोड उदाहरण

निर्भरताएँ इंस्टॉल करें:

```bash
pip install requests supervision opencv-python
```

सेट करें `URL` अपने Dedicated Deployment URL या किसी local Inference server पर। अपना [Roboflow API Key](https://app.roboflow.com/settings/api) के माध्यम से `API_KEY` environment variable.

```python
import base64
import os
import urllib.request

import cv2
import numpy as np
import requests
import supervision as sv

URL = "https://your-deployment.roboflow.cloud"
IMAGE_URL = "https://media.roboflow.com/notebooks/examples/dog.jpeg"
IMAGE_PATH = "dog.jpeg"
OUTPUT_PATH = "dog_annotated.png"

urllib.request.urlretrieve(IMAGE_URL, IMAGE_PATH)
image = cv2.imread(IMAGE_PATH)
_, buffer = cv2.imencode(".jpg", image)
image_base64 = base64.b64encode(buffer).decode("utf-8")

response = requests.post(
    f"{URL}/grounding_dino/infer",
    json={
        "api_key": os.getenv("API_KEY"),
        "image": {"type": "base64", "value": image_base64},
        "text": ["कुत्ता", "व्यक्ति", "बैकपैक"],
    },
)
preds = response.json()["predictions"]

xyxys = [
    [p["x"] - p["width"] / 2, p["y"] - p["height"] / 2,
     p["x"] + p["width"] / 2, p["y"] + p["height"] / 2]
    for p in preds
]
detections = sv.Detections(
    xyxy=np.array(xyxys, dtype=float),
    class_id=np.array([p.get("class_id", 0) for p in preds]),
    confidence=np.array([p["confidence"] for p in preds], dtype=float),
    data={"class_name": np.array([p["class"] for p in preds])},
)
labels = [f"{p['class']} {p['confidence']:.2f}" for p in preds]
annotated = sv.BoxAnnotator().annotate(scene=image.copy(), detections=detections)
annotated = sv.LabelAnnotator().annotate(scene=annotated, detections=detections, labels=labels)
cv2.imwrite(OUTPUT_PATH, annotated)
```

<figure><img src="/files/ce51b7ea4b48dba1292ed114ae19f8ca432ee55b" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
सेट करें `URL` को अपने deployment target से मिलाने के लिए:

* `http://localhost:9001` एक स्थानीय [Inference](https://inference.roboflow.com/) सर्वर।
* आपका [Dedicated Deployment](/roboflow/roboflow-hi/deploy/dedicated-deployments.md) एक private endpoint के लिए URL।
  {% endhint %}


---

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