[vtkusers] Blending images with non-zero origin

Sylvain Jaume jaume at tele.ucl.ac.be
Fri Jul 13 12:29:56 EDT 2001


Hi Matt,

If you just want to translate one image, try vtkImageTranslateExtent
I'm not sure this is a solution to your problem.

Sylvain

On Fri, 13 Jul 2001, ferrant wrote:

> Hi,
> 
> I need to blend two images that have different origins and different
> sizes. When they get blended, this is not taken into account, i.e. the
> origin of the images is assumed to be 0,0,0. I assume this is the way it
> is supposed to work. However, I would like this to be taken into account.
> 
> To solve my problem, I would need a class that resamples an image given
> new bounds, and that takes the origin into account, so that if for
> instance the origin is 30,30,30 and the image size 100,100,100 and that I
> want to blend it with a 256,256,256 image whose origin is 0,0,0, the first
> image gets black pixels up the the bounds of the second image. I tried
> ImageConstantPad, but that sets the origin to 0 before extending the
> image, and ImageResample does not work the way I want either.
> 
> Is there a filter that provides this functionality, or do I need to write
> it myself ?
> 
> thanks,
> 
> matt
> 
> M.Ferrant, Ph.D.
> UCL/TELE Room A-157 Place du Levant, 2 B-1348LLN - Belgium
> Tel. +32-10-478073 Fax. : +32-10-472089
> http://www.tele.ucl.ac.be/MEMBERS/Ferrant_Matthieu_e.html
> 
> 
> 
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