Scientific Reports 6: Article number: 19993; published online: 29 January 2016; updated: 18 March 2016

In the original version of this Article, Yuewei Liu was incorrectly listed as being affiliated with 'Department of Chemistry, Tsinghua University, Beijing, China'. The correct affiliation is listed below:

Edinburgh Super-Resolution Imaging Consortium, Heriot-Watt University, Edinburgh, EH14 4AS.

In addition, the Supplementary Software was omitted.

These errors have now been corrected in the PDF and HTML versions of the Article