[vtkusers] How to overlay two images with different opacities, ..

[Karthik Krishnan]

You'll find some examples that do precisely this in VTKEdge. (vtkedge.org).
Look at PaintbrushTest*.cxx. It overlays a label map segmentation on a
graylevel image. The opacity of the label map, or each label individually is
controlled using "<" and ">" keys, so as to fade the segmentations in and
out.

The classes that do the blending are based on VTK..

--
karthik

2009/8/13 Miguel Angel Rodriguez Florido <marf at itccanarias.org>

>        Hi all,
>
>        Perhaps this is an obvious question, but I've been playing with
> textures and lookuptables but I didn't get what I was looking for. I don't
> know where I'm wrong.
>
>        I would like to overlay two images (a color/graylevel image and its
> segmented version), and then I would like to change the opacity of any label
> or change its color. Could anybody give me any hint?.
>
>        Thank you very much.
>        Best regards.
>
> --
> Miguel Angel Rodríguez Florido
> Departamento de Ingeniería del Software
> División de Investigación y Desarrollo Tecnológico
> INSTITUTO TECNOLOGICO DE CANARIAS, S.A. - GOBIERNO DE CANARIAS
> www.itccanarias.org t: +34 928 727548/457462, f: +34 928 727517
>
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-- 
Karthik Krishnan
R&D Engineer,
Kitware Inc.
Ph: 518 881 4919
Fax: 518 371 4573
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