vtopoclass(1Vi)vtopoclass(1Vi)NAME
vtopoclass - perform a topological classification
SYNOPSIS
vtopoclass [-option ...] [infile] [outfile]
DESCRIPTION
vtopoclass performs a topological classification on a binary input image and produce a labelled output image.
Typically, this program is applied to a skeletonized binary image. It will attribute a label to each foreground voxel, which characterizes
its topological type.
The input image must be of type bit. The output image will be of type ubyte.
Output codes are the following:
1: interior point
2: isolated point
3: border point
4: curve point
5: curves junction
6: surface point
7: surface/curve junction
8: surfaces junction
9: surfaces/curve junction
LIT :
G. Malandain, G. Bertrand, N. Ayache: "Topological Segmentation of discrete surfaces", Intern. Journal of Computer Vision, 10:2, pp.
183-197, 1993
COMMAND LINE OPTIONS
vtopoclass accepts the following options:
-help Prints a message describing options.
-in infile Specifies the Vista data file containing the input images.
-out outfile Specifies where to write the output images as a Vista data file.
Input and output files can be specified on the command line or allowed to default to the standard input and output streams.
SEE ALSO vthin3d(1Vi), VImage(3Vi), Vista(7Vi)AUTHOR
Gabriele Lohmann <lohmann@cns.mpg.de>
Vista Version 2.0 15 Februar 1994 vtopoclass(1Vi)
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plaintov(1Vi)plaintov(1Vi)NAME
plaintov - convert image from Vista plain file format to Vista data file
SYNOPSIS
plaintov [-option ...] [infile] [outfile]
DESCRIPTION
plaintov reads an image in Vista plain file format and writes is as a Vista data file.
Plain file format, defined in Vplain(5Vi), allows a small image to be created entirely using a text editor because it represents pixel val-
ues in ASCII. In a Vista data file, those pixel values are encoded in binary.
COMMAND LINE OPTIONS
plaintov accepts the following options:
-help Prints a message describing options.
-in infile Specifies the input file, which is in Vista plain file format.
-out outfile Specifies the output file, which will be a Vista data file.
-name name Specifies the name to be given the converted image. Default: ``image''.
Input and output files can be specified on the command line or allowed to default to the standard input and output streams.
SEE ALSO VImage(3Vi), Vplain(5Vi), Vfile(5Vi), Vista(7Vi)AUTHOR
Daniel Ko <ko@cs.ubc.ca>
Vista Version 1.12 3 March 1994 plaintov(1Vi)
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