sgitopnm(1) [minix man page]

sgitopnm(1)                                                   General Commands Manual                                                  sgitopnm(1)

NAME

       sgitopnm - convert a SGI image file to a portable anymap

SYNOPSIS

       sgitopnm [-verbose] [-channel c] [SGIfile]

DESCRIPTION

       Reads  an SGI image file as input.  Produces a PGM image for a 2-dimensional (1 channel) input file, and a PPM image for a 3-dimensional (3
       or more channels) input file.

       Alternatively, produces a PGM image of any one of the channels in the input file.

OPTIONS

       -verbose
              Give some information about the SGI image file.

       -channel c
              Extract channel c of the image as a PGM image.  Without this option, sgitopnm extracts the first 3 channels as a PPM  image  or,  if
              the input has only 1 channel, extracts that as a PGM image, and if the input has 2 channels, fails.

REFERENCES

       SGI Image File Format documentation (draft v0.95) by Paul Haeberli (paul@sgi.com).  Available via ftp at sgi.com:graphics/SGIIMAGESPEC.

SEE ALSO

       pnm(5), pnmtosgi(1)

AUTHOR

       Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken@informatik.uni-oldenburg.de)

                                                                    29 Jul 2000                                                        sgitopnm(1)

ximtoppm(1)                                                   General Commands Manual                                                  ximtoppm(1)

NAME

       ximtoppm - convert an Xim file into a portable pixmap

SYNOPSIS

       ximtoppm [--alphaout={alpha-filename,-}] [ximfile]

DESCRIPTION

       Reads an Xim file as input.  Produces a portable pixmap as output.  The Xim toolkit is included in the contrib tree of the X.V11R4 release.

OPTIONS

       --alphaout=alpha-filename
              ximtoppm  creates  a PGM (portable graymap) file containing the alpha channel values in the input image.  If the input image doesn't
              contain an alpha channel, the alpha-filename file contains all zero (transparent) alpha values.  If you  don't  specify  --alphaout,
              ximtoppm does not generate an alpha file, and if the input image has an alpha channel, ximtoppm simply discards it.

              If you specify - as the filename, ximtoppm writes the alpha output to Standard Output and discards the image.

              Actually,  an  Xim  image  can contain an arbitrary fourth channel -- it need not be an Alpha channel.  ximtoppm extracts any fourth
              channel it finds as described above; it doesn't matter if it is an alpha channel or not.

              See pnmcomp(1) for one way to use the alpha output file.

       All options can be abbreviated to their shortest unique prefix.

SEE ALSO

       pnmcomp(1), ppm(5)

AUTHOR

       Copyright (C) 1991 by Jef Poskanzer.

                                                                   April 2, 2000                                                       ximtoppm(1)