last message about JPEG
Russ Wright <wright@lbl.gov> Tue, 18 August 1992 22:12 UTC
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Date: Tue, 18 Aug 1992 14:32:50 -0800
From: Russ Wright <wright@lbl.gov>
To: osi-ds@cs.ucl.ac.uk
Subject: last message about JPEG
Sorry for the second message, but my original mail to Alexander failed: ----- Transcript of session follows ----- Connected to bali.ECAN.IBM.DE: >>> MAIL From:<wright@lbl.gov> <<< 501 Unknown domain 'lbl.gov' 554 <runge@ecan.ibm.de>... Remote protocol error I tried both Sascha Runge <S.Runge@ecan.ibm.de> and runge@ecan.ibm.de Would someone in Europe try to send him the message. Russ ---- > Where do I get a picture-converter from, which transforms TIFF, IOCA, PCS, GIFF, or BITMAP -format into PBM or G3FAX -format ? > I'm trying to include pictures into the DIT. > > Thanks for help > Alexander Runge > (runge@ecan.ibm.de) Hi Alexander, JPEG is the new file format used for photos in the directory. G3FAX is just Black & White (not grey scale or color) and is being phased out. So, how do you convert from your image file format to JPEG? Get jpegsrc.v3.tar.Z (see below). This allows you to convert images from a number of formats to JPEG format. [The currently supported image file formats are: PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale format), GIF, Targa, and RLE (Utah Raster Toolkit format). (RLE is supported only if the URT library is available.)] Once you have the JPEG file, you will need to follow the instructions in the ISODE 8.0 release to put it into the directory. (You will probably want to get a copy of XV (from export.lcs.mit.edu) to display the photo on an X-Windows device). Russ ----------- ARCHIVE LOCATIONS ================= The "official" archive site for this software is ftp.uu.net (Internet address 137.39.1.9 or 192.48.96.9). The most recent released version can always be found there in directory graphics/jpeg. This particular version will be archived as jpegsrc.v3.tar.Z. If you are on the Internet, you can retrieve files from UUNET by anonymous FTP. If you don't have FTP access, UUNET's archives are also available via UUCP; contact postmaster@uunet.uu.net for information on retrieving files that way. Various other Internet sites maintain copies of the UUNET file, which may or may not be up-to-date. In Europe, try nic.funet.fi (128.214.6.100; look in directory pub/graphics/programs/jpeg). You can also obtain this software from CompuServe, in the GRAPHSUPPORT forum (GO PICS), library 10; this version will be file jpsrc3.zip. If you are not reasonably handy at configuring and installing portable C programs, you may have some difficulty installing this package. You may prefer to obtain a pre-built executable version. A collection of pre-built executables for various machines is currently available for anonymous FTP at procyon.cis.ksu.edu (129.130.10.80 --- this number is due to change soon); look under /pub/JPEG. The administrators of this system ask that FTP traffic be limited to non-prime hours. For more information on this archive, please contact Steve Davis (strat@cis.ksu.edu). This collection is not maintained by the Independent JPEG Group, and programs in it may not be the latest version. SUPPORTING SOFTWARE =================== You will probably want Jef Poskanzer's PBMPLUS image software, which provides many useful operations on PPM-format image files. In particular, it can convert PPM images to and from a wide range of other formats. You can FTP this free software from export.lcs.mit.edu (contrib/pbmplus*.tar.Z) or ftp.ee.lbl.gov (pbmplus*.tar.Z). Unfortunately PBMPLUS is not nearly as portable as the JPEG software is; you are likely to have difficulty making it work on any non-Unix machine. If you are using X Windows you might want to use the xv or xloadimage viewers to save yourself the trouble of converting PPM to some other format. Both of these can be found in the contrib directory at export.lcs.mit.edu. Actually, xv version 2.00 and up incorporates our software and thus can read and write JPEG files directly. (NOTE: since xv internally reduces all images to 8 bits/pixel, a JPEG file written by xv will not be very high quality; you may also prefer xloadimage for viewing if you have a 24-bit display. Caveat user.) For DOS machines, Lee Crocker's free Piclab program is a useful companion to the JPEG software. The latest version, currently 1.91, is available by FTP from SIMTEL20 and its various mirror sites, file <msdos.graphics>piclb191.zip. CompuServe also has it, in the same library as the JPEG software.
- last message about JPEG Russ Wright