Difference between ImageOps.invert() and ImageChops.invert()?

Spoon Reloaded <[email protected]>
Newsgroups gmane.comp.python.image
Message-ID <CABkj8=aT+xqx5vLKXj7vB1BC0PbCMx1564SyKPpr8jBSUYtEQA@mail.gmail.com>
Don't the methods ImageOps.invert() and ImageChops.invert() do the
same thing? If so, why do we need two different implementations (the
latter calls a C function while the former builds a lookup table and
uses the image transforming functions)? It seems to me that if they do
the same thing then one should call the other or something.
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