Photographic dataset: random peppercorns
  This is a photographic dataset collected for testing image processing algorithms. The idea is to have sets of different but statistically similar images. In this work the images show randomly distributed peppercorns. The dataset is made available at www.fips.fi/photographic_dataset.php . 
Teemu Helenius and Samuli Siltanen
physics.data-an cs.CV