# Bounding Box Level Augmentation for Segmentations/Polygon dataset? **URL:** \ **Category:** 🤝 Community Help\ **Created:** [September 18, 2023, 9:27am UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248 "2023-09-18T09:27:03Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![mrblake213](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/mrblake213/32/2877_2.png) [@mrblake213](https://discuss.roboflow.com/u/mrblake213)\ **Post date:** [September 18, 2023, 9:27am UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248/1 "2023-09-18T09:27:03Z")
Is it possible to use the bounding box level augmentations for polygon datasets for instance segmentation? ---
**Author:** ![Lenny](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/lenny/32/2383_2.png) [@Lenny](https://discuss.roboflow.com/u/Lenny)\ **Post date:** [September 18, 2023, 9:29am UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248/2 "2023-09-18T09:29:24Z")
Yes, it is possible to use bounding box level augmentations for polygon datasets for instance segmentation. Roboflow has introduced a new augmentation technique called bounding box level augmentation, which is not available anywhere else [source](https://blog.roboflow.com/introducing-bounding-box-level-augmentations/). However, if you have a dataset annotated with bounding boxes and want to convert them into instance segmentation annotation labels, you can use the SAM tutorial and notebook provided by Roboflow [source](https://blog.roboflow.com/polygon-vs-bounding-box-computer-vision-annotation/). For converting bounding boxes to polygons, you can use the `supervision.mask_to_xyxy` utility or import detections into supervision and export from the mask property [source](https://blog.roboflow.com/convert-bboxes-masks-polygons/). Remember, polygons can always be converted back to bounding boxes, but bounding boxes cannot be as easily converted into polygons [source](https://blog.roboflow.com/polygons-object-detection/). If you already have a dataset annotated with bounding boxes and want to convert it into an instance segmentation dataset, you can use SAM standalone because the model can process existing bounding boxes [source](https://blog.roboflow.com/enhance-image-annotation-with-grounding-dino-and-sam/). For labeling, Roboflow Annotate now offers automated polygon labeling for all users [source](https://blog.roboflow.com/automated-polygon-labeling-computer-vision/). Please note that the quality and quantity of the dataset have a significant impact on the performance of object detection models. High-quality annotations, with accurate object boundaries and precise labeling, play a crucial role in effectively training the model [source](https://blog.roboflow.com/polygon-vs-bounding-box-computer-vision-annotation/). * * * > Hi! I’m Roboflow’s AI powered bot. This is an automated response powered using AI with knowledge from our docs, blog, knowledge base, and previous forum responses. If you find this to be a helpful answer, please mark it as the solution using the checkbox icon below. If this doesn’t solve your issue, please follow up with what you’ve tried/why, and the community will continue to chime in as usual. ---
**Author:** ![mrblake213](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/mrblake213/32/2877_2.png) [@mrblake213](https://discuss.roboflow.com/u/mrblake213)\ **Post date:** [September 18, 2023, 9:33am UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248/3 "2023-09-18T09:33:15Z")
Here is the result after applying a 20% crop - bounding box level augmentation: ![image](https://canada1.discourse-cdn.com/flex029/uploads/roboflow1/original/2X/c/c527d6da20572623a7644803c4681cfafc729954.jpeg) Why did the object become black? ---
**Author:** ![leo](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/leo/32/2228_2.png) [@leo](https://discuss.roboflow.com/u/leo)\ **Post date:** [September 18, 2023, 11:43am UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248/4 "2023-09-18T11:43:08Z")
Hi @mrblake213 Sorry to hear you’re having issues with generating your dataset. Could you please share either the Universe link or workspace/project ID so we can take a deeper look? ---
**Author:** ![mrblake213](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/mrblake213/32/2877_2.png) [@mrblake213](https://discuss.roboflow.com/u/mrblake213)\ **Post date:** [September 18, 2023, 12:19pm UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248/5 "2023-09-18T12:19:14Z")
Hi! Here it is: [Street Litter Instance Segmentation Dataset by Street Litter](https://universe.roboflow.com/street-litter/street-litter) I just generated the latest version and looked at the images. There are still images of where the objects became black. ---
**Author:** ![mrblake213](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/mrblake213/32/2877_2.png) [@mrblake213](https://discuss.roboflow.com/u/mrblake213)\ **Post date:** [September 20, 2023, 1:22am UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248/6 "2023-09-20T01:22:49Z")
Hi! Any updates? ---
**Author:** ![leo](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/leo/32/2228_2.png) [@leo](https://discuss.roboflow.com/u/leo)\ **Post date:** [September 29, 2023, 8:18pm UTC](https://discuss.roboflow.com/t/bounding-box-level-augmentation-for-segmentations-polygon-dataset/3248/7 "2023-09-29T20:18:24Z")
Hi @mrblake213, Sorry for the delayed response. Could you try regenerating the version? It’s possible this issue was fixed.