[Insight-users] Testing GPU-based Median Filters

[Bill Lorensen]

In fact, if the API is the same as the itk filters, you might be able
to use itk's factory mechanism to load your accelerated classes at
run-time.

Bill

2010/1/12 Gaëtan Lehmann <gaetan.lehmann at jouy.inra.fr>:
>
> Le 12 janv. 10 à 00:18, Christopher Share a écrit :
>
>> Hi,
>>
>> I'm in the process of developing several different GPU-based median
>> filters for the ITK (as part of the 09/10 VPAC Summer Project - this year's
>> project doesn't have a web page yet but here's a link to last years' -
>> http://www.vpac.org/?q=node/290). I have a question regarding the testing of
>> the filters. I'd like to test the performance of the GPU filters under
>> different conditions, however I'm not clear about how these filters are used
>> in practice.
>>
>> For the purposes of testing the filters I have the following questions:
>>
>> 1. What image sizes should be tested? I was thinking of "small", "medium"
>> and "large" but I'm not sure what these sizes would be wrt to the ITK.
>
> I think the test should cover images smaller than the GPU memory and larger
> than the GPU memory.
>
>>
>> 2. Should I test RGB/RGBA images as well as greyscale images?
>
> no: ITK's filters does not support them.
>
>>
>> 3. For the median filter case, what radius's should be tested?
>
> You can have a look at ITK's test for that filter. I think that reusing the
> same test with your filter is a good start.
>
>> Should different radius's in different directions be tested?
>
>
> Yes, I think it should, because ITK's filter support it.
>
> BTW, it would be great if the filter can have the exact same API than
> MedianImageFilter. That way, it can be used as a direct replacement.
>
> Gaëtan
>
> --
> Gaëtan Lehmann
> Biologie du Développement et de la Reproduction
> INRA de Jouy-en-Josas (France)
> tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
> http://voxel.jouy.inra.fr  http://www.itk.org
> http://www.mandriva.org  http://www.bepo.fr
>
>
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