To database is available in two versions. The first, [unprocessed], consists of five of the original images that contain both the object and the background . In the second one, [processed], the background has been discarded, and the images consists of the smallest square that contains the object. For formal documentation look at the corresponding compressed technical report, [gzipped].

"Columbia Object Image Library (COIL-20),"

S. A. Nene, S. K. Nayar and H. Murase,

Technical Report CUCS-005-96, February 1996.

[gzipped][uncompressed]