This is the command teem-unu that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
teem-unu - Utah Nrrd Utilities command-line interface
DESCRIPTION
"teem-unu" is a command-line interface to much of the functionality in "nrrd",
a C library for raster data processing. Nrrd is one library in the "Teem"
collection of libraries. More information about Teem is at <http://teem.sf.net>.
Users are strongly encouraged to join the teem-users mailing list:
<http://lists.sourceforge.net/lists/listinfo/teem-users>. This is the primary forum
for feedback, questions, and feature requests.
The utility of unu is mainly as a pre-processing tool for getting data
into a type, encoding, format, or dimensions best suited for some visualization or
rendering task. Also, slices and projections are effective ways to visually inspect
the contents of a dataset. Especially useful commands include make, resample, crop,
slice, project, histo, dhisto, quantize, and save. Full documentation for each
command is shown by typing the command alone, e.g., "unu make". Unu can process CT
and MRI volume datasets, grayscale and color images, time-varying volumes of vector
fields (5-D arrays), and more. Currently supported formats are plain text files
(2-D float arrays), NRRD, VTK structured points, and PNG and PNM images. "unu make
-bs -1" can read from DICOM files. "unu save" can generate EPS files. Supported
encodings are raw, ascii, hex, gzip, and bzip2.
Much of the functionality of unu derives from chaining multiple
invocations together with pipes ("|"), minimizing the need to save out intermediate
files. For example, if "data.raw.gz" is a gzip'ed 256 x 256 x 80 volume of raw
floats written from a PC, then the following will save to "zsum.png" loading="lazy" a histogram
equalized summation projection along the slowest axis:
unu make -i data.raw.gz -t float -s 256 256 80 -e gzip -en little \
| unu project -a 2 -m sum \ | unu heq -b 2000 -s 1 \ | unu quantize -b 8 -o
zsum.png
If unu or nrrd repeatedly proves itself useful for your research, an
acknowledgment to that effect in your publication would be greatly appreciated,
such as (for LaTeX): "Dataset processing performed with the {\tt unu} tool (or the
{\tt nrrd} library), part of the {\tt Teem} toolkit available at {\tt
$<$http://teem.sf.net$>$}"
Formats available: nrrd pnm png vtk text eps Nrrd data encodings available: raw
ascii hex gz bz2
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