Openi: Open Access Biomedical Search Engine
Openi is a search engine that allows for searching and retrieval of images from open source literature and biomedical image collections. The image sources include PubMed Central, x-rays with radiology reports, NLM History of Medicine collection, and orthopedic illustrations. Copyright information can be found on the FAQ page here: https://openi.nlm.nih.gov/faq.php