ultralytics/docs/reference/yolo/data/converter.md

---
description: Convert COCO-91 to COCO-80 class, RLE to polygon, and merge multi-segment images with Ultralytics YOLO data converter. Improve your object detection.
keywords: Ultralytics, YOLO, converter, COCO91, COCO80, rle2polygon, merge_multi_segment, annotations
---

## coco91_to_coco80_class
---
### ::: ultralytics.yolo.data.converter.coco91_to_coco80_class
<br><br>

## convert_coco
---
### ::: ultralytics.yolo.data.converter.convert_coco
<br><br>

## rle2polygon
---
### ::: ultralytics.yolo.data.converter.rle2polygon
<br><br>

## min_index
---
### ::: ultralytics.yolo.data.converter.min_index
<br><br>

## merge_multi_segment
---
### ::: ultralytics.yolo.data.converter.merge_multi_segment
<br><br>

## delete_dsstore
---
### ::: ultralytics.yolo.data.converter.delete_dsstore
<br><br>