[Image-SIG] zoom for TkImage?

[Russell E. Owen]

PIL's ImageTk.PhotoImage object can be used in place of a Tkinter 
PhototImage, but does not have Tkinter's zoom and subsample methods. I 
realize PIL has other tools for resizing images (and they are more 
flexible and can do zoom in and out with one method instead of two), but 
nonetheless these methods would be useful additions, not just for 
compatibility, but also in reducing the # of copies of PIL objects that 
need to be kept around (no need for a zoomed PIL Image and a zoomed PIL 
PhotoImage).

So this is a request to add zoom and subsample methods to PIL's 
PhotoImage class.

Regards,

-- Russell