Damghan University Press Iranian Journal of Astronomy and Astrophysics 2322-4924 2 1 2015 04 01 Segmentation of Photospheric Solar Images by Using c-Means,k-Means, and FCM Algorithms 69 76 18 10.22128/ijaa.2015.18 EN Mahdi Yousefzadeh Department of Physics, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, P.O.Box 45195-1159, Iran Mohsen Javaherian Department of Physics, University of Zanjan, Zanjan, P.O.Box 45195313, Iran 0000-0003-0464-1561 Hossein Safari Department of Physics, University of Zanjan, Zanjan, P.O.Box 45195313, Iran Journal Article 2015 07 01 https://ijaa.du.ac.ir/article_18_8e8dd47b52d32eec8e46cbeb26e9ce37.pdf