Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Baba Masashi and Mukunoki Masayuki and Asada Naoki,Shadow Removal from a Real Image Based on Color Clustering,The Journal of the Institute of Image Electronics Engineers of Japan,02859831,The Institute of Image Electronics Engineers of Japan,2004,33,4B,531-538,https://cir.nii.ac.jp/crid/1390001204610231680,https://doi.org/10.11371/iieej.33.531