Two-dimensional segmentation of small convective patterns in radiation hydrodynamics simulations B. Lemmerer, D. Utz, A. Hanslmeier, A. Veronig, S. Thonhofer, H. Grimm-Strele and R. Kariyappa A&A, 563 (2014) A107 Published online: 17 March 2014 DOI: 10.1051/0004-6361/201321601