Single frame enhanced NavCam image taken on 17 June 2016, when Rosetta was about 30.8 km from the centre of the nucleus of Comet 67P/Churyumov-Gerasimenko. The average scale is 2.6 m/pixel and the image measures about 2.7 km across.
The original image and more information is available on the blog: CometWatch 17 June