[Insight-users] rounding an index pointer

[john smith]

Hi to all,

I am using a reader to read an image and then pass the reader to a
RescaleIntensityImageFilter, with which I rescale the image from 0 to
255.Then I am using an index type pointer tto get the pixel value, as it
seems bellow:

* InputImageType::Pointer image = filter_rescale->GetOutput();
             InputImageType::IndexType index =
filter_rescale->GetOutput()->GetLargestPossibleRegion().GetIndex();

                           InputImageType::IndexType currentIndex;
                           currentIndex[0] = k2;
                           currentIndex[1] = k1;
                           currentIndex[2] =
ui->verticalScrollBar_z->value();
                           InputImageType::PixelType currentValue =
image->GetPixel(currentIndex);*

But when I get the values of currentIndex, I get for example a value
113.581. I want to know in this case which rounding would be correct, the
113 value or the 114 value.And how I could achieve this rounding?

Thanks in advance
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