[vtkusers] Advice with setting LUT [vtkLookupTable] for FireIce (Hot/Cold)

[Bc. Michal Srna]

Hello,

I am blending CT images with SPECT (nuclear medicine) images. I have found
and tried some settings of vtkLookupTable (rainbow, hot...) for colormapping
those SPECT images, but none of them suits my needs.

I have one example of blending output of GE SPECT/low-dose CT Imaging system
and it looks like that - http://goo.gl/8eDfH (third column of images). That
is the colormapping I am aiming for.

I tried to find some LUTs and it seems, that the closest is the FireIce
(Hot/Cold) LUT, see the example here: http://goo.gl/KawPo

I didn't find, how to set vtkLookupTable for creating LUT like that
(SetHueRange,...). Could someone please help me, how to create LUT for
colormapping like on that example (Hot/Cold)?

My second question comes with transparency - I don't know, if it's possible
to colormap just bones (not black parts of image) and black parts make
totally transparent, so when blending it would looks like just bones were
colormapped?

Thanks for any suggestion!

Best regards,

Michal

-- 
S pozdravem Bc. Michal Srna

Fotografické portfolio:
http://michalsrna.cz
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