The overwhelming suggestion was to use pbmplus, a portable bitmap
manipulator. Ted Nolan was kind enough to point out that it's available
for anon ftp from sunsite.unc.edu in /pub/X11/contrib/pbmplus10dec91.tar.Z.
Other suggestions include fbm, xv, Image Alchemy, Image Magic, and a
raft of other things. Gene Rackow forwarded a file from the netpbm
distribution which practically stands alone as a summary. One other
suggestion, Image Alchemy, is included below the file Gene forwarded.
Thanks to the many who answered:
John Strupp <email@example.com>
Trevor Kirby <Trevor.Kirby@newcastle.ac.uk>
(via RadioMail) <firstname.lastname@example.org>
Andrew@sdsu.edu (Andrew Scherpbier)
Gene Rackow <email@example.com>
Nate Mann AP35-1008 x4774 <firstname.lastname@example.org>
Piete Brooks <Piete.Brooks@cl.cam.ac.uk>
Stefan Mochnacki <email@example.com>
Ted Nolan SRI Ft Gordon <firstname.lastname@example.org>
email@example.com (Alan Piszcz)
firstname.lastname@example.org (Lee Coltrane)
email@example.com (Andy Feldt)
firstname.lastname@example.org (Mark Costello)
email@example.com (Mark G. Owens)
firstname.lastname@example.org (Pete Welcher)
email@example.com (Karl-Jose Filler)
firstname.lastname@example.org (Pierre Martini)
From: Gene Rackow <email@example.com>
>I'm not sure about the specifics on pixrect files. Here is the OTHER.SYSTEMS
>file from the netpbm distribution. It has a couple of sun-specific systems
>in it. Maybe they handle pixrexct files.
> List of Other Free Image-Processing Software
> IM Raster Toolkit, by Alan Paeth (firstname.lastname@example.org).
> Provides a portable and efficient format and related toolkit. The
> format is versatile in supporting pixels of arbitrary channels,
> components, and bit precisions while allowing compression and machine
> byte-order independence. The kit contains more than 50 tools with
> extensive support of image manipulation, digital halftoning and format
> conversion. Previously distributed on tape c/o the University of
> Waterloo, an FTP version will appear someday.
> Utah RLE Toolkit. Conversion and manipulation package, similar to
> PBMPLUS. Available via FTP as cs.utah.edu:pub/toolkit-2.0.tar.Z and
> Fuzzy Pixmap Manipulation, by Michael Mauldin <email@example.com>.
> Conversion and manipulation package, similar to PBMPLUS. Version 1.0
> available via FTP as nl.cs.cmu.edu:/usr/mlm/ftp/fbm.tar.Z,
> uunet.uu.net:pub/fbm.tar.Z, and ucsd.edu:graphics/fbm.tar.Z.
> Img Software Set, by Paul Raveling <firstname.lastname@example.org>. Reads and
> writes its own image format, displays on an X11 screen, and does some
> image manipulations. Version 1.3 is available via FTP as
> export.lcs.mit.edu:contrib/img_1.3.tar.Z, and
> venera.isi.edu:pub/img_1.3.tar.Z along with a large collection of color
> Xim, by Philip R. Thompson. Reads and writes its own image format,
> displays on an X11 screen, and does some image manipulations.
> Available in your nearest X11R4 source tree as contrib/clients/xim.
> A more recent version is available via ftp from video.mit.edu. It uses
> x11r4 and the OSF/Motif toolkit to provide basic interactive image
> manipulation and reads/writes GIF, xwd, xbm, tiff, rle, xim, and other
> xloadimage, by Jim Frost <email@example.com>. Reads in images in various
> formats and displays them on an X11 screen. Available via FTP as
> export.lcs.mit.edu:contrib/xloadimage*, and in your nearest comp.sources.x
> TIFF Software, by Sam Leffler <firstname.lastname@example.org>. Nice
> portable library for reading and writing TIFF files, plus a few tools
> for manipulating them and reading other formats. Available via FTP as
> ucbvax.berkeley.edu:pub/tiff/*.tar.Z or uunet.uu.net:graphics/tiff.tar.Z
> ALV, a Sun-specific image toolkit. Version 2.0.6 posted to
> comp.sources.sun on 11dec89. Also available via email to
> popi, an image manipulation language. Version 2.1 posted to
> comp.sources.misc on 12dec89.
> ImageMagick, an X11 package for display and interactive manipulation
> of images. Uses its own format (MIFF), and includes some converters.
> Available via FTP as export.lcs.mit.edu:contrib/ImageMagick.tar.Z
> Khoros, a huge (~100 meg) graphical development environment based on
> X11R4. Khoros components include a visual programming language, code
> generators for extending the visual language and adding new application
> packages to the system, an interactive user interface editor, an
> interactive image display package, an extensive library of image and
> signal processing routines, and 2D/3D plotting packages. Available via
> FTP as pprg.unm.edu:pub/khoros/*.
> LaboImage, a SunView-based image processing and analysis package. It
> includes more than 200 image manipulation, processing and measurement
> routines, on-line help, plus tools such as an image editor, a color
> table editor and several biomedical utilities. Available via anonymous
> FTP as ads.com:pub/VISION-LIST-ARCHIVE/SHAREWARE/LaboImage_3.1.tar.Z
> The San Diego Supercomputer Center Image Tools, software tools for
> reading, writing, and manipulating raster images. Binaries for some
> machines available via anonymous FTP in sdsc.edu:sdscpub.
From: Nate Mann AP35-1008 x4774 <email@example.com>
>You might call Handmade Software Inc. - they make "Image Alchemy" for SUN, PC,
>etc. We've found it quite useful for image conversions among the ~50 or so
>they support. And they have ALWAYS been easy to work with and affordable!
> (510) 252-0101 Las Gatos, Ca.
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