Microscopic images of the tail fins of 20 rainbow trout specimens (Oncorhynchus mykiss). The fish were collected from one hatchery in the year 2000. Specimens were euthanized by overdose of MS222, fix
To database is available in two versions. The first, [unprocessed], consists of images for five of the objects that contain both the object and the background. The second, [processed], contains images