[Image-SIG] Fwd: Inverse of QUAD transform?
bborcic at gmail.com
Mon Dec 21 16:05:49 CET 2009
Well, obviously it should be possible to pick some minimal target rectangle
containing the target quad, and then the problem reduces to that of finding a
source quad around the source rectangle in such a way that mapping it to the
target rectangle will also map the source rectangle to the target quad :)
Laura & Edward Cannon wrote:
> ---------- Forwarded message ----------
> From: Laura& Edward Cannon<cannon.el at gmail.com>
> [...] There is not an anti-quad however.
> On Fri, Nov 27, 2009 at 9:50 AM, Mark Wendell<mark.wendell at gmail.com> wrote:
>> The docs say that the QUAD image transform takes a quadrilateral
>> defined by an 8-tuple, and transforms it to a rectangle of the
>> provided 'size'.
>> I need the inverse of that: I need to take a rectangular region, and
>> warp it to an arbitrary quad. Is there a way to do that?
>> Mark Wendell
>> Image-SIG maillist - Image-SIG at python.org
> Image-SIG maillist - Image-SIG at python.org
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