scikits-image/scikits-image — pull request #254 by jaberg (2012-08-17 22:02:25+00:00)
Title: ENH: initialize AffineTransform to identity when no args are provided

Previously, transform.AffineTransform() would not initialize the _matrix attribute of the transform, so none of the other methods would work properly. I propose to initialize the object with an identity transform in that case.