Captcha Images: 83,600+ Labeled 3-Character Alphanumeric Examples

Kaggle hosts a dataset of over 83,600 captcha images with labels for optical character recognition (OCR) model training. The images contain 3-character alphanumeric sequences. The author, organization, and collection method are not specified.

Use Cases

• Train optical character recognition (OCR) models based on labeled 3-character sequences.
• Benchmark text detection algorithms on synthetic text images.
• Develop adversarial models to break or improve captcha systems.
• Pre-train vision models for character recognition tasks.

Strengths

• Contains over 83,600 labeled images, providing a substantial volume for model training.
• Labels are provided for the 3-character alphanumeric sequences in each image.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

Kaggle