[Numpy-discussion] Bilateral filter

Zachary Pincus zachary.pincus@yale....
Tue Aug 5 11:29:53 CDT 2008


> Attached here my cython implementation of the bilateral filter,  
> which is my first cython program. I would ask for the following:

Thanks for the code! I know it will be of use to me. (Do you place any  
particular license on it?)

Zach


On Aug 5, 2008, at 9:38 AM, Nadav Horesh wrote:

> Attached here my cython implementation of the bilateral filter,  
> which is my first cython program. I would ask for the following:
>
> 	• Is there any way to speed up the code just by "cosmetic"  
> modifications?
> 	• In particular I use the unportable gcc function __builtin_abs: Is  
> there any way to access this in a portable way?
> 	• I would like to donate this code to scipy or any other suitable  
> project. What can/should I do to realise it?
>
> Remarks:
>
> The code contains 3 end-user routines:
> 	• A pure python implementation: Easy to read and modify --- it can  
> be cut out into a python source code.
> 	• A straight forward cython implementation: About 4 times as fast  
> as the python implementation.
> 	• An optimised cython implementation earning another factor of 2 in  
> speed (depends on the parameters used).
> I see this code as a "research grade" that would evolve in the near  
> future, as I am working on a related project, and hopefully  
> following your comments.
>
>   Nadav
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