CMU Computer Vision Images - List of sites (intended for computer vision use) from CMU. The Visible Human - The Visible Human Project has many medical images. Image Processing: the Lena Story - The history of one of the most well-known test images: Lena Sjooblom. The Lenna Story - Information about Lena Soderberg (née Sjööblom) and the history of the famous test image. The Japanese Female Facial Expression Image Database - Database of facial expression images freely available for research purposes. USC-SIPI Image Database - A collection of digitised images in TIFF format. Catalogue in PDF. Previews and images free on-line, database on magnetic tape can be purchased.