subsetフォルダの画像は下記のデータベースから得た画像のうち最初の20枚を抜き出したものです。

Revised Snodgrass and Vanderwart object pictorial set
Description: Full color line drawings, derived from the original Snodgrass & Vanderwart set.
License: ?
Link: http://wiki.cnbc.cmu.edu/Objects (Unofficial)
Reference: Rossion, B., & Pourtois, G. (2004). Revisiting Snodgrass and Vanderwart’s object pictorial set: The role of surface detail in basic-level object recognition. Perception, 33(2), 217-236.