Lace: Greek OCR
Lace: Greek OCR is a project emerging from the results of our 2012/13 campaign to produce high-quality OCR of polytonic Greek texts in a HPC environment. It comprises over 600 volumes from archive.org and from original scans. There are over 6 million pages of OCR output in total, including experimental and rejected results.
Lace invites interested parties to submit corrections of the texts. Many of the texts have been provided on GitHub.
See also OCR for ancient Greek for similar efforts.