Ultralytics HUB Datasets
Ultralytics HUB datasets are a practical solution for managing and leveraging your custom datasets.
Once uploaded, datasets can be immediately utilized for model training. This integrated approach facilitates a seamless transition from dataset management to model training, significantly simplifying the entire process.
Watch: Upload Datasets to Ultralytics HUB | Complete Walkthrough of Dataset Upload Feature
Upload Dataset
Ultralytics HUB datasets are just like YOLOv5 and YOLOv8 🚀 datasets. They use the same structure and the same label formats to keep everything simple.
Before you upload a dataset to Ultralytics HUB, make sure to place your dataset YAML file inside the dataset root directory and that your dataset YAML, directory and ZIP have the same name, as shown in the example below, and then zip the dataset directory.
For example, if your dataset is called "coco8", as our COCO8 example dataset, then you should have a coco8.yaml inside your coco8/ directory, which will create a coco8.zip when zipped:
You can download our COCO8 example dataset and unzip it to see exactly how to structure your dataset.
The dataset YAML is the same standard YOLOv5 and YOLOv8 YAML format.
coco8.yaml
# Ultralytics YOLO 🚀, AGPL-3.0 license
# COCO8 dataset (first 8 images from COCO train2017) by Ultralytics
# Documentation: https://docs.ultralytics.com/datasets/detect/coco8/
# Example usage: yolo train data=coco8.yaml
# parent
# ├── ultralytics
# └── datasets
# └── coco8 ← downloads here (1 MB)
# Train/val/test sets as 1) dir: path/to/imgs, 2) file: path/to/imgs.txt, or 3) list: [path/to/imgs1, path/to/imgs2, ..]
path: ../datasets/coco8 # dataset root dir
train: images/train # train images (relative to 'path') 4 images
val: images/val # val images (relative to 'path') 4 images
test: # test images (optional)
# Classes
names:
0: person
1: bicycle
2: car
3: motorcycle
4: airplane
5: bus
6: train
7: truck
8: boat
9: traffic light
10: fire hydrant
11: stop sign
12: parking meter
13: bench
14: bird
15: cat
16: dog
17: horse
18: sheep
19: cow
20: elephant
21: bear
22: zebra
23: giraffe
24: backpack
25: umbrella
26: handbag
27: tie
28: suitcase
29: frisbee
30: skis
31: snowboard
32: sports ball
33: kite
34: baseball bat
35: baseball glove
36: skateboard
37: surfboard
38: tennis racket
39: bottle
40: wine glass
41: cup
42: fork
43: knife
44: spoon
45: bowl
46: banana
47: apple
48: sandwich
49: orange
50: broccoli
51: carrot
52: hot dog
53: pizza
54: donut
55: cake
56: chair
57: couch
58: potted plant
59: bed
60: dining table
61: toilet
62: tv
63: laptop
64: mouse
65: remote
66: keyboard
67: cell phone
68: microwave
69: oven
70: toaster
71: sink
72: refrigerator
73: book
74: clock
75: vase
76: scissors
77: teddy bear
78: hair drier
79: toothbrush
# Download script/URL (optional)
download: https://github.com/ultralytics/assets/releases/download/v0.0.0/coco8.zip
After zipping your dataset, you should validate it before uploading it to Ultralytics HUB. Ultralytics HUB conducts the dataset validation check post-upload, so by ensuring your dataset is correctly formatted and error-free ahead of time, you can forestall any setbacks due to dataset rejection.
Once your dataset ZIP is ready, navigate to the Datasets page by clicking on the Datasets button in the sidebar and click on the Upload Dataset button on the top right of the page.
This action will trigger the Upload Dataset dialog.
Select the dataset task of your dataset and upload it in the Dataset .zip file field.
You have the additional option to set a custom name and description for your Ultralytics HUB dataset.
When you're happy with your dataset configuration, click Upload.
After your dataset is uploaded and processed, you will be able to access it from the Datasets page.
You can view the images in your dataset grouped by splits (Train, Validation, Test).
Tip
Each image can be enlarged for better visualization.
Also, you can analyze your dataset by click on the Overview tab.
Next, train a model on your dataset.
Download Dataset
Navigate to the Dataset page of the dataset you want to download, open the dataset actions dropdown and click on the Download option. This action will start downloading your dataset.
Share Dataset
Info
Ultralytics HUB's sharing functionality provides a convenient way to share datasets with others. This feature is designed to accommodate both existing Ultralytics HUB users and those who have yet to create an account.
Note
You have control over the general access of your datasets.
You can choose to set the general access to "Private", in which case, only you will have access to it. Alternatively, you can set the general access to "Unlisted" which grants viewing access to anyone who has the direct link to the dataset, regardless of whether they have an Ultralytics HUB account or not.
Navigate to the Dataset page of the dataset you want to share, open the dataset actions dropdown and click on the Share option. This action will trigger the Share Dataset dialog.
Set the general access to "Unlisted" and click Save.
Now, anyone who has the direct link to your dataset can view it.
Tip
You can easily click on the dataset's link shown in the Share Dataset dialog to copy it.
Edit Dataset
Navigate to the Dataset page of the dataset you want to edit, open the dataset actions dropdown and click on the Edit option. This action will trigger the Update Dataset dialog.
Apply the desired modifications to your dataset and then confirm the changes by clicking Save.
Delete Dataset
Navigate to the Dataset page of the dataset you want to delete, open the dataset actions dropdown and click on the Delete option. This action will delete the dataset.
