[Insight-users] Resampling without Interpolation

[Emmanuel Christophe]

Hi Himanshu,

You might want to have a look at the otbSubsampleImageFilter:
http://hg.orfeo-toolbox.org/OTB/file/1030810074c8/Code/MultiScale/otbSubsampleImageFilter.h
http://hg.orfeo-toolbox.org/OTB/file/1030810074c8/Code/MultiScale/otbSubsampleImageFilter.txx
This filter should be fully compatible with ITK.

I think it does just what you want when used with the Wavelet::INVERSE
template. Here, wavelet is a simple enum defined as
namespace Wavelet{enum WaveletDirection{FORWARD, INVERSE};}

Best regards,
Emmanuel

On Mon, Apr 5, 2010 at 02:40, Himanshu Neema <usc.himanshu at gmail.com> wrote:
> Hi,
> I want to resample (upsize) an image without interpolator inserting
> interpolated values. For example :
> image = 1 2 3
>              4 5 6
>              7 8 9
> I want resampled image to be : ( upsize by 2)
> interpolatedImage = 1 0 2 0 3 0
>                               0 0 0 0 0 0
>                               4 0 5 0 6 0
>                               0 0 0 0 0 0
>                               7 0 8 0 9 0
>                               0 0 0 0 0 0
> Basically I dont want resampler to use any interpolator , I just want zero
> padding in case of upsampling.
> Thanks for your help
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