Erratum to: Multimed Tools Appl (2016) 76:15867–15884

https://doi.org/10.1007/s11042-016-3881-5

In the original publication, the corresponding author’s email address (Duhwan Mun) and Fig. 1 image were incorrect. The correct email address is given below and the correct image of Fig. 1 is also presented below.