Arts and Graphics part 2 ///////////////////////// Multimedia File Formats on the Internet - a Beginner's Guide http://ac.dal.ca/~dong/contents.html An extensive multimedia guide for novice Internet users. It explains the file formats for texts, compressed files, games, software, pictures, sound and music, movies, foreign languages, etc. It also explains the ways to identify the different files and how to download and use the files. There are many pointers within the guide that you can use to download the files. This info is mostly for PC users but some of the information is essential even for Mac users and is general enough to be of importance for all users. --------------------------------------------------------------------------- A Basic Scanned Image Formula for calculating Image File Size Multiply the number of inches high by the scan resolution (dpi). This will equal the number of Pixels high the image is. Multiply the number of inches wide by the scan resolution (in dpi) The answer you get will be the number of pixels wide the image is. Multiply the number of pixels high by the number of pixels wide. Multiply that by the color depth in bits e.g. 8bit 16bit 24bit 32bit Then divide by 8bits to the byte. Example: 12" X 12" at 300 dots per inch in 24bit color. 12" X 300dpi = 3600 pixels high 12" X 300dpi = 3600 pixels wide 3600 high X 3600 wide = 12.96 mega-pixels 24 bits per pixel X 12.96 mega-pixels = 311.04 mega-bits 311.04 mega-bits / 8 bits to a byte = 38.88 mega-bytes of data or... a 12" x 12" 24bit color image will take up roughly 39 megabytes. These figures represent non-compressed image data. Using JPEG, compressed PICT or other compression algorithms may significantly lower the file size considerably (and sometimes also lower the file's perceived image quality). --------------------------------------------------------------------------- The Scanning FAQ (World Wide Web site) http://www.dopig.uab.edu/dopigpages/FAQ/The-Scan-FAQ.html Everything you wanted to know about proper scanning tecniques and more. Jeff Bone at the Univ. of Alabama created this page. He covers four primary categories of scanning material. Line Art, Half-tones, grayscale and color. There is also info on address resolution and copyright issues. The techniques have graphic examples right on the web page. If you do any scanning whatsoever - then you need to read this page! --------------------------------------------------------------------------- GIF, JPEG, and other graphic formats http://www.xmission.com/~mgm/gif/index.html Information, discussions and white papers on various graphic formats. Not just for the technically minded but developers are intended audience. --------------------------------------------------------------------------- MPEG Movie Resources on the Internet FTP to: s2k-ftp.cs.berkeley.edu (look in -> /pub/multimedia/mpeg/movies) ftp://havefun.stanford.edu/pub/mpeg gopher://ftp.cs.ttu.edu/11/pub/mpeg/movies gopher://epoch.CS.Berkeley.EDU:70/11/multimedia/mpeg/movies gopher://samisdat.unh.edu:70/1/internet/mpeg http://www.ccsf.caltech.edu/~johns/sl9.html http://newproducts.jpl.nasa.gov/sl9/images.html http://seds.lpl.arizona.edu/sl9/sl9.html http://s2k-ftp.cs.berkeley.edu:8000/multimedia/mpeg/movies/ http://ice.ucdavis.edu/whimsy/fun_stuff/fun_stuff_movies.html http://www.best.com/~johnp/fun.html http://www.wit.com/ Enough sites? Look for the ".mpg" or ".mpeg" suffixes and those will be the MPEG animations you came looking for. Don't forget - you'll need a MPEG viewer to see all these great files. See the chapter(s) "Mostly Mac" for more information on where to obtain SPARKLE (MPEG viewer for Macintosh) --------------------------------------------------------------------------- MPEG audio and visual file format Info-sites http://www.eit.com/techinfo/mpeg/mpeg.html http://cui_www.unige.ch/OSG/MultimediaInfo/ http://random.chem.psu.edu/mpeg.html Lots of information and pointers/links to information on the technicalites of how best to process and understand the MPEG file format structure. If you are planning to make MPEG multimedia or video then you need to come here first! An abundance of information awaits the MPEG-minded traveller! --------------------------------------------------------------------------- MPEG Info + Source Code sites MPEG1/MPEG2 Encoders/Decoders plus source code FTP to: sunsite.unc.edu in the --> /pub/electronic-publications/IUMA/audio_utils/converters also in the --> /pub/electronic-publications/IUMA/audio_utils/mpeg_players MPEG1/MPEG2 video encoder/decoder source code FTP to: ftp.netcom.com in the --> /pub/mpeg,pub/mpeg2 --------------------------------------------------------------------------- Other MPEG Resources on the Internet General Information MPEG FAQ at CRS4 http://www.crs4.it/~luigi/MPEG/mpegfaq.html MPEG FAQ at BTU-Berlin http://www.cs.tu-berlin.de/~phade/mpegfaq/index.html MPEG Archive at BTU-Berlin http://www.cs.tu-berlin.de/~phade/mpeg.html Video on the Internet: The MPEG Technology http://www.netvideo.com/technology/technology.html MPEG Intellectual Property Rights Licensing information http://www.cablelabs.com/PR/950327mpeg_ipr.html The "home site" ftp archive of Chad Fogg [mpeg2play, mpeg2decode, vmpeg, etc, for PC's] ftp://ftp.netcom.com/pub/cf/cfogg MPEG Research at U.C. Berkeley http://www-plateau.cs.Berkeley.EDU:80/mpeg/ ATSC (Advanced Television Systems Commitee) http://atsc.org/ ---------------- MPEG Systems Resources Home of mplex (MPEG-1 public domain Systems multiplexer ftp://ftp.informatik.tu-muenchen.de/pub/comp/graphics/mpeg/mplex/ ---------------- MPEG Audio Resources Playing MPEG Compressed Sound Files http://www.io.org/~cme/MPEG_Utils/mpeg.html MPEG Facts and Info (MPEG-1 Audio) http://www.dreamscape.com/putz/mpegfact.html"> Information and FAQ about MPEG Audio Layer-3 ftp://fhginfo.fhg.de/pub/layer3/MPEG_Audio_L3_FAQ.html MPEG-1 and MPEG-2 Audio software and data ftp://ftp.tnt.uni-hannover.de/pub/MPEG/audio/ ---------------- MPEG-related Companies and Organizations http://www.crs4.it/~luigi/MPEG/mpegcompanies.html A list of MPEG-related Companies http://www.cnm.bell-atl.com/ Bell Atlantic Center for Networked Multimedia http://www.cnm.bell-atl.com/davic/davic.html DAVIC (Digital Audio Visual Concil) http://www.ftelinc.com/ FutureTel http://www.gi.com/ General Instrument http://www.hp.com/ Hewlett-Packard http://www.ibm.com/ IBM (International Business Machines) http://image.mit.edu/~pshen/imedia.html I-media Corporation http://www.kauai.com/~bbal Kauai Media - MPEG Audio Software Solutions http://www.mpr.ca/ MPR Teltech http://www.netvideo.com Netvideo - Internet Video Services, Inc. http://nvr.com/htdocs/NVRHome.html North Valley Research http://www.optibase.com/ Optibase http://www.optivision.com/ Optivision Inc. http://www.eng.monash.edu.au/Commercial/Siemens/siemens.html Siemens Inc. http://www.sel.sony.com/SEL/index.html Sony Electronics http://www.nta.no/brukere/DVC/ Telenor Research (Digital Video Coding Group) http://www.eeel.nist.gov/advnii/ United States government info-document on the Workshop on Advanced Digital Video in the National Information Infrastructure http://www.xingtech.com Xing Technologies My personal thanks to Tristan "RAMBO" Savatier for supplying many of these sites for inclusion in BIGSURF and helping to further people's knowledge of availble resources located on the Internet. ===========================================================================