Rotating images in Quick Look

I use the very handy Quick Look a lot, especially when viewing photos sent to me via email. Sometimes some of the images are oriented incorrectly (sideways) in the email message, and thus will display sideways when using Quick Look. I have not been able to find a menu or contextual menu that allows the rotation of images. Does anyone know of a keyboard command or some other "secret" that will let me rotate images in Quick Look?