This article [J. Biomed. Opt. 19(6), 066007 (2014)] was originally published online on 20 June 2014 with an error in the Discussion section. On p. 7, the left column, line 6, the author has clarified that the specified resolution is half-pitch. The sentence has been corrected as follows:

“Using our current experiment microfilter as an example (desired FOV of 6-mm diameter, half-pitch resolution of $0.78\mu \mathrm{m}$, objective’s depth of field of $\sim 5\mu \mathrm{m}$, and a total sample height variation of $250\mu \mathrm{m}$), the total amount of data that a conventional WSI system would have to collect for a color image would be equal to $\sim 8.9$ gigapixels, one-third of which is assigned to each of the RGB channels.”

This article was corrected online on 7 December 2015.