pnmtov(1vi) [debian man page]

pnmtov(1Vi)															       pnmtov(1Vi)

NAME

       pnmtov - convert portable anymap (PNM) image to Vista data file

SYNOPSIS

       pnmtov [-option ...] [infile] [outfile]

DESCRIPTION

       pnmtov converts an image from a portable anymap (PNM) file to a Vista data file. The following types of portable anymap may be converted:

	 o Portable  bitmap (PBM) and its ``rawbits'' variant. A PBM image is converted to a single-band Vista image with bit pixels. Pixel values
	   0 and 1 are swapped since, for PBM images, 0 denotes white and 1 denotes black.

	 o Portable graymap (PGM) and its ``rawbits'' variant. A PGM image is converted to a single-band Vista image with ubyte pixels.  The  full
	   range of PGM pixel values is mapped to [0,255] in the returned image.

	 o Portable pixmap (PPM) and its ``rawbits'' variant. A PPM image is converted to an RGB color image (nbands: 3, ncolors: 3, color_interp:
	   rgb) with ubyte pixels. The full range of PPM pixel values is mapped to [0,255] in the returned image.

       A wide range of filters are available for converting other image formats to PNM.

COMMAND LINE OPTIONS

       pnmtov accepts the following options:

       -help	      Prints a message describing options.

       -in infile     Specifies the input file, which is a PBM, PGM, or PPM file.

       -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), Vfile(5Vi), Vista(7Vi),
       pnm(5), pbm(5), pgm(5), ppm(5)

AUTHOR

       Daniel Ko <ko@cs.ubc.ca>

Vista Version 1.12						   3 March 1994 						       pnmtov(1Vi)

volumesel(1Vi)															    volumesel(1Vi)

NAME

       volumesel - select volumes from a volume set

SYNOPSIS

       volumesel  <options> [infile] [outfile]

DESCRIPTION

       volumesel  selects  volumes from a set of volumes according to some given selection criterion. Possible criteria are: size, circularity and
       compactness.

       "Size" refers to be number of voxels belonging to the volume.

       "Circularity" is a measure of roundness defined as:

	 (3.0 * size) / (4.0 * pi * rmax)

       where "rmax" is the radius of the smallest enclosing sphere.  Thus if the volume is a sphere, this value will be "1", The further the  vol-
       ume's shape deviates from spherical shape, the smaller this value will become.

       "Compactness" is defined as the ratio between the number of border voxels and volume size. Thus, if most voxels belonging to the volume are
       interior voxels this value will be close to "1".

       The input image must be of type "volumes". The output image will be also be of type "volumes".

COMMAND LINE OPTIONS

       volumesel accepts the following options:

       -help	      Prints a message describing options.

       -in infile     Specifies the Vista data file containing the first input image.

       -image infile  Specifies the Vista data file containing the second input image.

       -out outfile   Specifies where to write the output images as a Vista data file.

       -feature outfile
		      Specifies the selection criterion. Possible choices are: size | circularity | compactness. Default: size.

       -min min       Specifies the lower bound for the feature value.

       -max max       Specifies the upper bound for the feature value.

       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), Vista(7Vi)

AUTHOR

       Gabriele Lohmann <lohmann@cns.mpg.de>

Vista Version 2.0						  15 Februar 1994						    volumesel(1Vi)