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| description: Explore Ultralytics utilities for bounding boxes and instances, providing detailed documentation on handling bbox formats, conversions, and more. |
| keywords: Ultralytics, bounding boxes, Instances, bbox formats, conversions, AI, deep learning, YOLO, xyxy, xywh, ltwh |
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| # Reference for `ultralytics/utils/instance.py` |
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| !!! Note |
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| This file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/instance.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/instance.py). If you spot a problem please help fix it by [contributing](https://docs.ultralytics.com/help/contributing/) a [Pull Request](https://github.com/ultralytics/ultralytics/edit/main/ultralytics/utils/instance.py) 🛠️. Thank you 🙏! |
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| ## ::: ultralytics.utils.instance.Bboxes |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.instance.Instances |
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| <br><br><hr><br> |
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| ## ::: ultralytics.utils.instance._ntuple |
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| <br><br> |
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