[vtkusers] Blending images with non-zero origin

[John Biddiscombe]

Use ImageReslice on one image with the other as a reference input, one is 
resampled to the spacing and points of the other...works well, thanks to 
David Gobbi for the implementation.

JB

At 16:55 13/07/2001, 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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