Sorry for the noise, found something after creating a new image *without* loading it, but using PIL.Image.new() which seems to work on all PIL image objects:
>>> isinstance(a_pil_image, PIL.Image.Image) True Guy -- Guy K. Kloss Institute of Information and Mathematical Sciences Te Kura Pūtaiao o Mōhiohio me Pāngarau Room 2.63, Quad Block A Building Massey University, Auckland, Albany Private Bag 102 904, North Shore Mail Centre voice: +64 9 414-0800 ext. 9585 fax: +64 9 441-8181 eMail: g.kl...@massey.ac.nz http://iims.massey.ac.nz _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig