Add OBB support to ConfusionMatrix via MetricTarget

docs/changelog.md

@@ -25,6 +25,8 @@ date_modified: 2026-04-23
 
 - Added [#932](https://github.com/roboflow/supervision/pull/932): [`sv.ImageAssets`](https://supervision.roboflow.com/latest/assets/) for downloading sample images alongside existing video assets, useful for examples and tutorials.
 
+- Added [#2247](https://github.com/roboflow/supervision/pull/2247): [`sv.ConfusionMatrix`](https://supervision.roboflow.com/latest/metrics/detection/#supervision.metrics.detection.ConfusionMatrix) now accepts `metric_target=MetricTarget.ORIENTED_BOUNDING_BOXES`, computing IoU via `oriented_box_iou_batch` over `xyxyxyxy` coordinates. Previously, OBB inputs silently fell back to axis-aligned bounding-box IoU, producing incorrect match scores for rotated detections.
+
 - Changed [#2169](https://github.com/roboflow/supervision/pull/2169): [`sv.MeanAveragePrecisionResult`](https://supervision.roboflow.com/latest/metrics/mean_average_precision/) and related metric arrays (`mAP_scores`, `ap_per_class`, `iou_thresholds`, precision/recall) are now `float32` instead of `float64`. Reduces memory and speeds up computation; numerical results may differ in the last few digits.
 
 - Changed [#2178](https://github.com/roboflow/supervision/pull/2178): [`sv.rle_to_mask`](https://supervision.roboflow.com/latest/detection/utils/converters/#supervision.detection.utils.converters.rle_to_mask) and [`sv.mask_to_rle`](https://supervision.roboflow.com/latest/detection/utils/converters/#supervision.detection.utils.converters.mask_to_rle) moved to `supervision.detection.utils.converters`. The old import path `supervision.dataset.utils` continues to work but is deprecated.