Update README.md

README.md

@@ -3,4 +3,30 @@ task_categories:
 - object-detection
 language:
 - en
----
+---
+
+Example usage:
+
+```python
+from abc import ABC, abstractmethod
+from datasets import load_dataset
+from PIL import Image
+from typing import Iterator
+
+class DatasetInterface(ABC):
+    @abstractmethod
+    def get_generator(self) -> Iterator[tuple[Image.Image, list[float], list[float], list[str]]]:
+        pass
+
+class CocoDataset(DatasetInterface):
+    def __init__(self):
+        self.dataset = load_dataset("detection-datasets/coco", split="val", streaming=True)
+
+    def get_generator(self) -> Iterator[tuple[Image.Image, list[float], list[float], list[str]]]:
+        for elem in self.dataset:
+            image = elem['image'].convert("RGB")
+            boxes = elem['objects']['bbox']
+            probs = [1.0] * len(boxes) # max confidence
+            labels = elem['objects']['category']
+            yield image, boxes, probs, labels
+```