Isn't that just slicing? Or perhaps you are looking for a way to simplify
the calculation of the slice arguments from the original pad arguments?

On Mon, Apr 12, 2021 at 4:15 PM Jeff Gostick <jgost...@gmail.com> wrote:

> I often find myself padding an array to do some processing on it (i.e. to
> avoid edge artifacts), then I need to remove the padding.  I wish there
> was either a built in "unpad" function that accepted the same arguments as
> "pad", or that "pad" accepted negative numbers (e.g [-20, -4] would undo a
> padding of [20, 4]).  This seems like a pretty obvious feature to me so
> maybe I've just missed something, but I have looked through all the open
> and closed issues on github and don't see anything related to this.
>
>
> Jeff G
>
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