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Re:Rotating an image with OpenCV and Python by ahojnnes on Saturday April 05, 2014 @09:56PM (#7539343)
> from skimage.transform import rotate

> rotate(image, angle, resize=True)

Also, scikit-image provides a nice interface for geometric transformations: `SimilarityTransform`, `AffineTransform`, `ProjectiveTransform`, `PolynomialTransform`.