On Sat, Jan 24, 2009 at 11:47 PM, David Gowers <00a...@gmail.com> wrote:
> On Sat, Jan 24, 2009 at 2:48 PM, jungle <agi...@cox.net> wrote:
>>
>> Has anyone ever done any work implementing advanced interpolation schemes
>> (NEDI or ICBI)?  They provide much better results than the spatially
>> invariant schemes present in GIMP.
> AFAIK no.
>
>>
>> I would probably be able to code up something, but I wouldn't be able to
>> guarantee that it would be very efficient.  Of course, these more
>> complicated methods are much slower.
>>
>> ICBI matlab GPL source is available.  I should be able to port it to c++.
>> What do y'all think?
> NEDI looks amazing, and ICBI even more amazing; I could certainly put
> them to good use rather than my current rather slow/limited
> vectorization-based scaling system.
> Keep in mind:
> a) You should investigate implementing this interpolation method for
> GEGL rather than GIMP, as in the fairly near future these kinds of
> transformations in GIMP will be implemented through use of GEGL.
> b) If you want it included with the baseline GEGL distribution, it
> would need to be written not in C++ but in C.
>    If you don't, then you can probably code it in C++ fine.
To clarify -- this is because both GEGL and GIMP are written in C.

David
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