ALOI is a color image collection of one-thousand small objects, recorded for scientific purposes. In order to capture the sensory variation in object recordings, for each object the following parameters were systematically varied: viewing angle, illumination angle, and illumination color. Additionally, wide-baseline stereo images were captured. Over a hundred images of each object were recorded, yielding a total of 110,250 images for the collection.Related publication:J. M. Geusebroek, G. J. Burghouts, and A. W. M. Smeulders, The Amsterdam library of object images, International Journal of Computer Vision, 61(1), 103-112, January, 2005 (PDF).