finebooks/bhl-impact-gt

FineBooks BHL IMPACT Ground Truth 2,165 page scans from six historical natural-history books, each paired with an expert, ~99.95%-accurate transcription and full page-layout ground truth. A benchmark for OCR, text recognition, and document layout analysis on real historical print. This dataset is the basis of the BHL OCR Leaderboard, where open OCR models are scored against these transcriptions. As new OCR models are released, they are run through the same evaluation pipeline… See the full description on the dataset page: https://huggingface.co/datasets/finebooks/bhl-impact-gt.