Morgan, M., Chubb, C., & Solomon, J. A. (2008). A ‘dipper’ function for texture discrimination
based on orientation variance.
Journal of Vision, 8(11):9, 1–8,
http://journalofvision.org/8/11/9/, doi:10.1167/8.11.9.
Page 6, a copy of the correct Equations A3–A5 are shown below.