Subject:   -48- How can I convert images to and from other formats?
Date: 18 Nov 1995 00:00:01 EST

  IRIX comes with several tools which convert images to or from SGI's
  RGB format.  The executables are part of the eoe2.sw.imagetools
  subsystem, and include:

  fromalias - convert an Alias image to an IRIS image
  frombin - create an RGB IRIS image file from a binary dump of image data
  fromcmap - convert a color map into an image with one scanline
  fromcube - convert a Cubicomp/Vertigo image file to IRIS format
  fromdi - convert an old .di dithered image into an IRIS image
  fromface - convert a UNIX faceserver image into an IRIS image
  fromgif - convert a GIF image into an IRIS image
  frommac - convert a MacPaint image into an IRIS image
  frompic - convert a MOVIE BYU .PIC image to an IRIS image
  fromppm - convert an image in Jef Poskanzer's format into an IRIS image
  fromrla - convert a Wavefront image to an IRIS image
  fromsun - convert a sun image into an IRIS image
  fromtarga - convert a targa image into an IRIS image
  fromxbm - convert an X Bitmap image into an IRIS image
  fromxud - convert an xwd file into an IRIS image
  fromxwd - convert an xwd file into an IRIS image
  fromyuv - convert an Abekas yuv image into an IRIS image
  toalias - convert an IRIS image to an Alias image
  toascii - convert an IRIS image to text characters
  tobin - convert an IRIS image to binary dump of pixel data
  tobw - convert an IRIS image to black and white
  togif - convert an IRIS image to a Compuserve GIF image
  tomac - convert an IRIS image to MacPaint format
  tonews - convert an IRIS image into NeWS format
  topict - convert an IRIS image to Macintosh PICT format
  toppm - convert an IRIS image file into Jef Poskanzer's ppm image format
  tops - convert an IRIS image to PostScript
  toscitex - Convert IRIS images into Scitex CT2T images
  tosun - convert an IRIS image to a sun raster file
  totarga - convert an IRIS image to a type 2 targa image
  toyuv - convert an IRIS image to yuv format

  The source for each of these tools is in the 4Dgifts
  dev.dev_sw.giftsfull subsystem and installed in the directory
  /usr/people/4Dgifts/iristools/imgtools.  Each also has a manpage.

  Similar tools for more formats ('frompict', 'frompixar', 'fromtiff',
  'fromutah', 'totiff', 'toutah' and 'toxbm' at last count), as well as
  some which come with IRIX and a few miscellaneous cool image editing
  tools, are in ftp://ftp.sgi.com/graphics/bin/. 'fromjpeg' and
  'tojpeg' can be found in ftp://ftp.clr.toronto.edu/pub/sgi/sgijpeg/.
  ftp://swedishchef.lerc.nasa.gov/ has 'fromvicar' in
  /image/conversion/from/, 'tocolps' and 'topcl' in
  /image/conversion/to/ and many other image-related tools in nearby
  directories.

  Finally, 'imgworks' (in the imgtools.sw.tools subsystem) understands
  RGB, TIFF and FIT formats, and several freeware programs including
  SDSC's 'imtools' (in
  ftp://ftp.sdsc.edu/pub/sdsc/graphics/imtools/sgi_4d/), 'xv' (in
  ftp://ftp.cis.upenn.edu/pub/xv/) and ImageMagick (in
  ftp://ftp.x.org/contrib/applications/ImageMagick/) work on SGIs and
  understand SGI's RGB format as well as many other formats. The
  Graphics File Formats FAQ (in
  ftp://rtfm.mit.edu/pub/usenet/news.answers/graphics/fileformats-faq/)
  lists many other graphics file viewing and conversion programs.