* Update * Logger step fix: Increment step with epochs (#8654) * enhance * revert * allow training from scratch * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update --img argument from train.py single line * fix image size from 640 to 128 * suport custom dataloader and augmentation * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * format * Update dataloaders.py * Single line return, single line comment, remove unused argument * address PR comments * fix spelling * don't augment eval set * use fstring * update augmentations.py * new maning convention for transforms * reverse if statement, inline ops * reverse if statement, inline ops * updates * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * update dataloaders * Remove additional if statement * Remove is_train as redundant * Cleanup * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Cleanup2 * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update classifier.py * Update augmentations.py * fix: imshow clip warning * update * Revert ToTensorV2 removal * Update classifier.py * Update normalize values, revert uint8 * normalize image using cv2 * remove dedundant comment * Update classifier.py * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * replace print with logger * commit steps * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com> * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Update * Allow logging models from GenericLogger (#8676) * enhance * revert * allow training from scratch * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update --img argument from train.py single line * fix image size from 640 to 128 * suport custom dataloader and augmentation * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * format * Update dataloaders.py * Single line return, single line comment, remove unused argument * address PR comments * fix spelling * don't augment eval set * use fstring * update augmentations.py * new maning convention for transforms * reverse if statement, inline ops * reverse if statement, inline ops * updates * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * update dataloaders * Remove additional if statement * Remove is_train as redundant * Cleanup * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Cleanup2 * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update classifier.py * Update augmentations.py * fix: imshow clip warning * update * Revert ToTensorV2 removal * Update classifier.py * Update normalize values, revert uint8 * normalize image using cv2 * remove dedundant comment * Update classifier.py * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * replace print with logger * commit steps * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * support final model logging * update * update * update * update * remove curses * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update classifier.py * Update __init__.py Co-authored-by: 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load device fix * Update Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> * Add experiment * Merge master * Attach names * weight decay = 1e-4 * weight decay = 5e-5 * update smart_optimizer console printout * fashion-mnist fix * Merge master * Update Table * Update Table * Remove destroy process group * add kwargs to forward() * fuse fix for resnet50 * nc, names fix for resnet50 * nc, names fix for resnet50 * ONNX CPU inference fix * revert * cuda * if augment or visualize * if augment or visualize * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * New smart_inference_mode() * Update README * Refactor into /classify dir * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * reset defaults * reset defaults * fix gpu predict * warmup * ema half fix * spacing * remove data * remove cache * remove denormalize * save run settings * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * verbose false on initial plots * new save_yaml() function * Update ci-testing.yml * Path(data) CI fix * Separate classification CI * fix val * fix val * fix val * smartCrossEntropyLoss * skip validation on hub load * autodownload with working dir root * str(data) * Dataset usage example * im_show normalize * im_show normalize * add imagenet simple names to multibackend * Add validation speeds * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * 24-space names * Update bash scripts * Update permissions * Add bash script arguments * remove verbose * TRT data fix * names generator fix * optimize if names * update usage * Add local loading * Verbose=False * update names printing * Add Usage examples * Add Usage examples * Add Usage examples * Add Usage examples * named_children * reshape_classifier_outputs * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * update * update * fix CI * fix incorrect class substitution * fix incorrect class substitution * remove denormalize * ravel fix * cleanup * update opt file printing * update opt file printing * update defaults * add opt to checkpoint * Add warning * Add comment * plot half bug fix * Use NotImplementedError * fix export shape report * Fix TRT load * cleanup CI * profile comment * CI fix * Add cls models * avoid inplace error * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Fix usage examples * Update README * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README * Update README Co-authored-by: Ayush Chaurasia <ayush.chaurarsia@gmail.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
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English | 简体中文
YOLOv5🚀是一个在COCO数据集上预训练的物体检测架构和模型系列,它代表了Ultralytics对未来视觉AI方法的公开研究,其中包含了在数千小时的研究和开发中所获得的经验和最佳实践。
文件
请参阅YOLOv5 Docs,了解有关训练、测试和部署的完整文件。
快速开始案例
安装
在Python>=3.7.0 的环境中克隆版本仓并安装 requirements.txt,包括PyTorch>=1.7。
git clone https://github.com/ultralytics/yolov5 # 克隆
cd yolov5
pip install -r requirements.txt # 安装
推理
YOLOv5 PyTorch Hub 推理. 模型 自动从最新YOLOv5 版本下载。
import torch
# 模型
model = torch.hub.load('ultralytics/yolov5', 'yolov5s') # or yolov5n - yolov5x6, custom
# 图像
img = 'https://ultralytics.com/images/zidane.jpg' # or file, Path, PIL, OpenCV, numpy, list
# 推理
results = model(img)
# 结果
results.print() # or .show(), .save(), .crop(), .pandas(), etc.
用 detect.py 进行推理
detect.py 在各种数据源上运行推理, 其会从最新的 YOLOv5 版本 中自动下载 模型 并将检测结果保存到 runs/detect 目录。
python detect.py --source 0 # 网络摄像头
img.jpg # 图像
vid.mp4 # 视频
path/ # 文件夹
'path/*.jpg' # glob
'https://youtu.be/Zgi9g1ksQHc' # YouTube
'rtsp://example.com/media.mp4' # RTSP, RTMP, HTTP 流
训练
以下指令再现了 YOLOv5 COCO
数据集结果. 模型 和 数据集 自动从最新的YOLOv5 版本 中下载。YOLOv5n/s/m/l/x的训练时间在V100 GPU上是 1/2/4/6/8天(多GPU倍速). 尽可能使用最大的 --batch-size, 或通过 --batch-size -1 来实现 YOLOv5 自动批处理. 批量大小显示为 V100-16GB。
python train.py --data coco.yaml --cfg yolov5n.yaml --weights '' --batch-size 128
yolov5s 64
yolov5m 40
yolov5l 24
yolov5x 16
教程
- 训练自定义数据 🚀 推荐
- 获得最佳训练效果的技巧 ☘️ 推荐
- 使用 Weights & Biases 记录实验 🌟 新
- Roboflow:数据集、标签和主动学习 🌟 新
- 多GPU训练
- PyTorch Hub ⭐ 新
- TFLite, ONNX, CoreML, TensorRT 导出 🚀
- 测试时数据增强 (TTA)
- 模型集成
- 模型剪枝/稀疏性
- 超参数进化
- 带有冻结层的迁移学习 ⭐ 新
- 架构概要 ⭐ 新
环境
使用经过我们验证的环境,几秒钟就可以开始。点击下面的每个图标了解详情。
如何与第三方集成
| Deci ⭐ NEW | ClearML ⭐ NEW | Roboflow | Weights & Biases |
|---|---|---|---|
| Automatically compile and quantize YOLOv5 for better inference performance in one click at Deci | Automatically track, visualize and even remotely train YOLOv5 using ClearML (open-source!) | Label and export your custom datasets directly to YOLOv5 for training with Roboflow | Automatically track and visualize all your YOLOv5 training runs in the cloud with Weights & Biases |
为什么选择 YOLOv5
图片注释 (点击扩展)
- COCO AP val 表示 mAP@0.5:0.95 在5000张图像的COCO val2017数据集上,在256到1536的不同推理大小上测量的指标。
- GPU Speed 衡量的是在 COCO val2017 数据集上使用 AWS p3.2xlarge V100实例在批量大小为32时每张图像的平均推理时间。
- EfficientDet 数据来自 google/automl ,批量大小设置为 8。
- 复现 mAP 方法:
python val.py --task study --data coco.yaml --iou 0.7 --weights yolov5n6.pt yolov5s6.pt yolov5m6.pt yolov5l6.pt yolov5x6.pt
预训练检查点
| Model | size (pixels) |
mAPval 0.5:0.95 |
mAPval 0.5 |
Speed CPU b1 (ms) |
Speed V100 b1 (ms) |
Speed V100 b32 (ms) |
params (M) |
FLOPs @640 (B) |
|---|---|---|---|---|---|---|---|---|
| YOLOv5n | 640 | 28.0 | 45.7 | 45 | 6.3 | 0.6 | 1.9 | 4.5 |
| YOLOv5s | 640 | 37.4 | 56.8 | 98 | 6.4 | 0.9 | 7.2 | 16.5 |
| YOLOv5m | 640 | 45.4 | 64.1 | 224 | 8.2 | 1.7 | 21.2 | 49.0 |
| YOLOv5l | 640 | 49.0 | 67.3 | 430 | 10.1 | 2.7 | 46.5 | 109.1 |
| YOLOv5x | 640 | 50.7 | 68.9 | 766 | 12.1 | 4.8 | 86.7 | 205.7 |
| YOLOv5n6 | 1280 | 36.0 | 54.4 | 153 | 8.1 | 2.1 | 3.2 | 4.6 |
| YOLOv5s6 | 1280 | 44.8 | 63.7 | 385 | 8.2 | 3.6 | 12.6 | 16.8 |
| YOLOv5m6 | 1280 | 51.3 | 69.3 | 887 | 11.1 | 6.8 | 35.7 | 50.0 |
| YOLOv5l6 | 1280 | 53.7 | 71.3 | 1784 | 15.8 | 10.5 | 76.8 | 111.4 |
| YOLOv5x6 + TTA |
1280 1536 |
55.0 55.8 |
72.7 72.7 |
3136 - |
26.2 - |
19.4 - |
140.7 - |
209.8 - |
表格注释 (点击扩展)
- 所有检查点都以默认设置训练到300个时期. Nano和Small模型用 hyp.scratch-low.yaml hyps, 其他模型使用 hyp.scratch-high.yaml.
- mAPval 值是 COCO val2017 数据集上的单模型单尺度的值。
复现方法:python val.py --data coco.yaml --img 640 --conf 0.001 --iou 0.65 - 使用 AWS p3.2xlarge 实例对COCO val图像的平均速度。不包括NMS时间(~1 ms/img)
复现方法:python val.py --data coco.yaml --img 640 --task speed --batch 1 - TTA 测试时数据增强 包括反射和比例增强.
复现方法:python val.py --data coco.yaml --img 1536 --iou 0.7 --augment
Classification ⭐ NEW
YOLOv5 release v6.2 brings support for classification model training, validation, prediction and export! We've made training classifier models super simple. Click below to get started.
Classification Checkpoints (click to expand)
We trained YOLOv5-cls classification models on ImageNet for 90 epochs using a 4xA100 instance, and we trained ResNet and EfficientNet models alongside with the same default training settings to compare. We exported all models to ONNX FP32 for CPU speed tests and to TensorRT FP16 for GPU speed tests. We ran all speed tests on Google Colab Pro for easy reproducibility.
| Model | size (pixels) |
acc top1 |
acc top5 |
Training 90 epochs 4xA100 (hours) |
Speed ONNX CPU (ms) |
Speed TensorRT V100 (ms) |
params (M) |
FLOPs @224 (B) |
|---|---|---|---|---|---|---|---|---|
| YOLOv5n-cls | 224 | 64.6 | 85.4 | 7:59 | 3.3 | 0.5 | 2.5 | 0.5 |
| YOLOv5s-cls | 224 | 71.5 | 90.2 | 8:09 | 6.6 | 0.6 | 5.4 | 1.4 |
| YOLOv5m-cls | 224 | 75.9 | 92.9 | 10:06 | 15.5 | 0.9 | 12.9 | 3.9 |
| YOLOv5l-cls | 224 | 78.0 | 94.0 | 11:56 | 26.9 | 1.4 | 26.5 | 8.5 |
| YOLOv5x-cls | 224 | 79.0 | 94.4 | 15:04 | 54.3 | 1.8 | 48.1 | 15.9 |
| ResNet18 | 224 | 70.3 | 89.5 | 6:47 | 11.2 | 0.5 | 11.7 | 3.7 |
| ResNet34 | 224 | 73.9 | 91.8 | 8:33 | 20.6 | 0.9 | 21.8 | 7.4 |
| ResNet50 | 224 | 76.8 | 93.4 | 11:10 | 23.4 | 1.0 | 25.6 | 8.5 |
| ResNet101 | 224 | 78.5 | 94.3 | 17:10 | 42.1 | 1.9 | 44.5 | 15.9 |
| EfficientNet_b0 | 224 | 75.1 | 92.4 | 13:03 | 12.5 | 1.3 | 5.3 | 1.0 |
| EfficientNet_b1 | 224 | 76.4 | 93.2 | 17:04 | 14.9 | 1.6 | 7.8 | 1.5 |
| EfficientNet_b2 | 224 | 76.6 | 93.4 | 17:10 | 15.9 | 1.6 | 9.1 | 1.7 |
| EfficientNet_b3 | 224 | 77.7 | 94.0 | 19:19 | 18.9 | 1.9 | 12.2 | 2.4 |
Table Notes (click to expand)
- All checkpoints are trained to 90 epochs with SGD optimizer with lr0=0.001 at image size 224 and all default settings. Runs logged to https://wandb.ai/glenn-jocher/YOLOv5-Classifier-v6-2.
- Accuracy values are for single-model single-scale on ImageNet-1k dataset.
Reproduce bypython classify/val.py --data ../datasets/imagenet --img 224 - Speed averaged over 100 inference images using a Google Colab Pro V100 High-RAM instance.
Reproduce bypython classify/val.py --data ../datasets/imagenet --img 224 --batch 1 - Export to ONNX at FP32 and TensorRT at FP16 done with
export.py.
Reproduce bypython export.py --weights yolov5s-cls.pt --include engine onnx --imgsz 224
Classification Usage Examples (click to expand)
Train
YOLOv5 classification training supports auto-download of MNIST, Fashion-MNIST, CIFAR10, CIFAR100, Imagenette, Imagewoof, and ImageNet datasets with the --data argument. To start training on MNIST for example use --data mnist.
# Single-GPU
python classify/train.py --model yolov5s-cls.pt --data cifar100 --epochs 5 --img 224 --batch 128
# Multi-GPU DDP
python -m torch.distributed.run --nproc_per_node 4 --master_port 1 classify/train.py --model yolov5s-cls.pt --data imagenet --epochs 5 --img 224 --device 0,1,2,3
Val
Validate accuracy on a pretrained model. To validate YOLOv5s-cls accuracy on ImageNet.
bash data/scripts/get_imagenet.sh --val # download ImageNet val split (6.3G, 50000 images)
python classify/val.py --weights yolov5s-cls.pt --data ../datasets/imagenet --img 224
Predict
Run a classification prediction on an image.
python classify/predict.py --weights yolov5s-cls.pt --data data/images/bus.jpg
model = torch.hub.load('ultralytics/yolov5', 'custom', 'yolov5s-cls.pt') # load from PyTorch Hub
Export
Export a group of trained YOLOv5-cls, ResNet and EfficientNet models to ONNX and TensorRT.
python export.py --weights yolov5s-cls.pt resnet50.pt efficientnet_b0.pt --include onnx engine --img 224
贡献
我们重视您的意见! 我们希望给大家提供尽可能的简单和透明的方式对 YOLOv5 做出贡献。开始之前请先点击并查看我们的 贡献指南,填写YOLOv5调查问卷 来向我们发送您的经验反馈。真诚感谢我们所有的贡献者!
联系
关于YOLOv5的漏洞和功能问题,请访问 GitHub Issues。商业咨询或技术支持服务请访问https://ultralytics.com/contact。















