recaptcha-57k-images-dataset

Image dataset of reCAPTCHA tile images for image classification. This dataset is used to train recaptcha-classification-57k and powers vision-ai-recaptcha-solver.

Dataset summary

• Task: image classification
• Size: ~57k labeled images
• Labels: 14 classes (13 target classes + other)

Labels

Target classes in this dataset:

• bicycle
• bridge
• bus
• car
• chimney
• crosswalk
• fire hydrant
• motorcycle
• mountain
• palm tree
• stairs
• tractor
• traffic light

The other class represents non-target/background tiles.

Intended use

• Training and evaluating models for reCAPTCHA tile classification.
• Research or testing workflows, including integration with vision-ai-recaptcha-solver.

Limitations

• Coverage is limited to the classes present in the dataset.
• The reCAPTCHA system changes over time; models trained on this data may degrade on new variants.

Ethical considerations

Use this dataset only for lawful, authorized purposes such as research, benchmarking, or testing in controlled environments.

License

MIT License. See the repository LICENSE file for details.