[Teem-users] Creating Colored and Transparent images from 2d raw data?

[Amit C. <am...@sd...>]

Greetings,

I am toying with Teem utilities to create color mapped images from 2d
raw floating point data.
With Jorik's help I have been able to create images with unevenly placed
colors.

I am wondering if its possible to create these images with custom
transparency, like colors I can define an opacity map for transparency
control.

Any pointers appreciated.

Thanks
--Amit

Here is what I have put together so far
%unu imap -m map.txt -i data.nrrd |unu quantize -i - -b 8 | unu save -f
png -i - -o test.png

%cat map.txt
0.0 0 0 255
0.15 0 255 0
0.2 255 0 0

%unu head data.nrrd
NRRD0001
type: float
dimension: 2
sizes: 3000 1500
spacings: 1 1
labels: "x" "y"
endian: little
encoding: raw