[vtkusers] vtkImageReslice speed

[John Drescher]

On Wed, Jun 20, 2012 at 5:09 AM, zlf <jxdw_zlf at yahoo.com.cn> wrote:
> Hi all,
> I need to call vtkImageReslice in a high frequency (30 times per second).
> The problem I meet is the CPU is nearly 100% once I start to run
> vtkImageReslice.
>
> 1. I need only translation. No rotation and scale. I thought it will be much
> faster if the translation value specified is integral multiple of spacing.
> e.g: (0,0,image->GetSpacing()[2]). But my test result says no.
>
> 2. Lower resolution is acceptable as well.
>
> Anyway to accelerate it?
>

Are you testing in Release mode? On windows Debug mode can be 100
times slower than release mode for some filters.

John