---
description: Explore Ultralytics YOLO metrics tools - from confusion matrix, detection metrics, pose metrics to box IOU. Learn how to compute and plot precision-recall curves.
keywords: Ultralytics, YOLO, YOLOv3, YOLOv4, metrics, confusion matrix, detection metrics, pose metrics, box IOU, mask IOU, plot precision-recall curves, compute average precision
---

## ConfusionMatrix
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### ::: ultralytics.utils.metrics.ConfusionMatrix
<br><br>

## Metric
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### ::: ultralytics.utils.metrics.Metric
<br><br>

## DetMetrics
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### ::: ultralytics.utils.metrics.DetMetrics
<br><br>

## SegmentMetrics
---
### ::: ultralytics.utils.metrics.SegmentMetrics
<br><br>

## PoseMetrics
---
### ::: ultralytics.utils.metrics.PoseMetrics
<br><br>

## ClassifyMetrics
---
### ::: ultralytics.utils.metrics.ClassifyMetrics
<br><br>

## box_area
---
### ::: ultralytics.utils.metrics.box_area
<br><br>

## bbox_ioa
---
### ::: ultralytics.utils.metrics.bbox_ioa
<br><br>

## box_iou
---
### ::: ultralytics.utils.metrics.box_iou
<br><br>

## bbox_iou
---
### ::: ultralytics.utils.metrics.bbox_iou
<br><br>

## mask_iou
---
### ::: ultralytics.utils.metrics.mask_iou
<br><br>

## kpt_iou
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### ::: ultralytics.utils.metrics.kpt_iou
<br><br>

## smooth_BCE
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### ::: ultralytics.utils.metrics.smooth_BCE
<br><br>

## smooth
---
### ::: ultralytics.utils.metrics.smooth
<br><br>

## plot_pr_curve
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### ::: ultralytics.utils.metrics.plot_pr_curve
<br><br>

## plot_mc_curve
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### ::: ultralytics.utils.metrics.plot_mc_curve
<br><br>

## compute_ap
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### ::: ultralytics.utils.metrics.compute_ap
<br><br>

## ap_per_class
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### ::: ultralytics.utils.metrics.ap_per_class
<br><br>