What colour model does the image use in PIL

[Hrvoje Niksic]

Johny <python at hope.cz> writes:

> I would need to apply a threshold value to the image, where
> everything above a certain brightness level becomes white, and
> everything below the level becomes black.  How can I do that with
> PIL?

I think you're supposed to use the "point" method, but I don't have an
example ready.  See
http://mail.python.org/pipermail/image-sig/2004-November/003019.html
for a hint.