Update README.md

README.md

@@ -127,16 +127,34 @@ task_categories:
 ## Usage
 
 ```python
-from datasets import load_dataset
 import matplotlib.pyplot as plt
+import matplotlib.patches as patches
+from datasets import load_dataset
+
+dataset = load_dataset("CorentinDumery/MixCount", split="train", streaming=True)
+example = next(iter(dataset))
+
+for name, count, desc in zip(example['class_names'], example['class_counts'], example['class_descriptions']):
+    print(f" - {name}: {count} instance(s)")
+    print(f"   Description: {desc}")
+
+objects = example['objects']
 
-ds = load_dataset("CorentinDumery/MixCount", split="train[:1]")
+fig, ax = plt.subplots(1, figsize=(10, 8))
+ax.imshow(example['image'])
 
-sample = ds[0]
-print(sample["file_name"], sample["total_count"], "objects,", sample["num_classes"], "classes")
+for bbox, category_id in zip(objects['bbox'], objects['category']):
+    x, y, w, h = bbox
+    color = plt.colormaps['tab20'](category_id % 20)
+    rect = patches.Rectangle(
+        (x, y), w, h,
+        linewidth=2,
+        edgecolor=color,
+        facecolor='none',
+    )
+    ax.add_patch(rect)
 
-plt.imshow(sample["image"])
-plt.axis("off")
+plt.axis('off')
 plt.show()
 ```