python-imaging/Pillow — pull request #393 by cgohlke (2013-10-27 01:05:09+00:00)
Title: Support RGBA TIFF with missing ExtraSamples tag

See http://stackoverflow.com/questions/19582526/pillow-cannot-read-different-tiff-files

Pillow can not identify TIFF files that contain valid RGBA images but don't contain the `ExtraSamples` tag (as required by the TIFF specification). The question is whether Pillow should support this case?