Correction to: Multimed Tools Appl (2017) 76:1201–1216

https://doi.org/10.1007/s11042-015-3111-6

The Eqs. 3 and 15 in the original version of this article contained an error. The correct equations are presented below:

$$ {I}_{0^{{}^{\circ}}}^{\prime}\left({\mathbb{R}}_0\right)=I\left({\mathbb{R}}_0\right)-I\left({\mathbb{R}}_1\right) $$
(3)
$$ C\left({I}_{\theta}^{n-1}\left({\mathbb{R}}_0\right),{I}_{\alpha}^{n-1}\left({\mathbb{R}}_0\right)\right)=\left\{\begin{array}{c}1,\kern1.5em if\ {I}_{\theta}^{n-1}\left({\mathbb{R}}_0\right)>{I}_{\alpha}^{n-1}\left({\mathbb{R}}_0\right)\\ {}0,\kern1.75em else\kern9.5em \end{array}\ \right.\kern2.75em $$
(15)