scikit-image/scikit-image — pull request #1229 by almarklein (2014-11-21 21:36:15+00:00)
Title: Update docs for img_as_ubyte

The line in `img_as_ubyte` needs correction; ubyte cannot hold negative data. From a quick experiment it seems like both `img_as_uint` and `img_as_ubyte` clip negative values (and not shift them to the positive domain).