*Abstract unavailable.*

This article [J. Elec. Imag. 21(2), 023025 (2012)], published online on 22 June 2012, contained an error in Eq. (34). The notation $\mathrm{\Gamma}(1/\lambda )$ was missing from the denominator of the second additive expression. The correct equation is:

## (34)

$${m}_{4}(Y)=\frac{{\tau}^{4}\mathrm{\Gamma}\left(\frac{5}{\lambda}\right)}{\mathrm{\Gamma}\left(\frac{1}{\lambda}\right)}+\frac{6{s}^{2}{\tau}^{2}\mathrm{\Gamma}\left(\frac{3}{\nu}\right)\mathrm{\Gamma}\left(\frac{3}{\lambda}\right)}{\mathrm{\Gamma}\left(\frac{1}{\nu}\right)\mathrm{\Gamma}\left(\frac{1}{\lambda}\right)}+\frac{{s}^{4}\mathrm{\Gamma}\left(\frac{5}{\nu}\right)}{\mathrm{\Gamma}\left(\frac{1}{\nu}\right)}\phantom{\rule{0ex}{0ex}}={m}_{4}(X)+6{m}_{2}(N){m}_{2}(X)+{m}_{4}(N).$$The online version of the article was corrected on 1 August 2012.