pfaff@mercury.asd.contel.com (Ray Pfaff - Oakwood 457 934-8162) (09/11/89)
Just got the Neptune pictures and noticed that the README file says that the picutres are in "encapsulated postscript format". Can this be sent to a post- script printer ? If so, how? When I tried to send the stuff to the local postscript printer (I'm on a sun attached to a LAN) it barfed and said something about not being able to process a binary file.
jms@tardis.Tymnet.COM (Joe Smith) (09/13/89)
In article <23678@louie.udel.EDU> pfaff@mercury.asd.contel.com (Ray Pfaff - Oakwood 457 934-8162) writes: >Just got the Neptune pictures and noticed that the README file says that the >picutres are in "encapsulated postscript format". Can this be sent to a post- >script printer ? If so, how? When I tried to send the stuff to the local >postscript printer (I'm on a sun attached to a LAN) it barfed and said something >about not being able to process a binary file. Actuallym the README file says: "The images were digitized by a ProViz and saved on a UNIX AUF partition as Encapsulated Postscript. The postscript text was deleted. Only the image command data is in the file." In otherwords, they used to be Postscript, but all the encapsulation has been removed leaving only the raw binary data. If you have the fbm library (fuzzy bit map) that showed up on comp.sources.unix, you can try the following commands: <file raw2fbm -w640 -h480 | fbps >file.ps # for postscript <file raw2fbm -w640 -h480 | fbext -W1152 -H900 -S >file.sun-8bitgray <file raw2fbm -w640 -h480 | fbext -W1152 -H900 | fbhalf -S >file.sun-raster <file raw2fbm -w640 -h480 | gray2clr -u | fbqant -c16 -I >file.iff-16color I know the conversion to IFF and b&w sun-raster works, having used them. -- Joe Smith (408)922-6220 | SMTP: JMS@F74.TYMNET.COM or jms@tymix.tymnet.com McDonnell Douglas FSCO | UUCP: ...!{ames,pyramid}!oliveb!tymix!tardis!jms PO Box 49019, MS-D21 | PDP-10 support: My car's license plate is "POPJ P," San Jose, CA 95161-9019 | narrator.device: "I didn't say that, my Amiga did!"
new@udel.EDU (09/23/89)
I understand that the Neptune pictures are too large to post. Could somebody please convert the sounds that Voyager heard to IFF-8SVX format and post these? I'm sure that these would take much less bandwidth, especially with modern compression techniques. Thanks, Darren
denbeste@bbn.com (Steven Den Beste) (09/23/89)
In article <24659@louie.udel.EDU> new@udel.EDU (Darren New) writes: >I understand that the Neptune pictures are too large to post. >Could somebody please convert the sounds that Voyager heard to >IFF-8SVX format and post these? I'm sure that these would take >much less bandwidth, especially with modern compression techniques. > Thanks, > Darren Would someone also please post the schematics for Voyager's computer, and the mechanical drawings for its chassis? Please also post an inexpensive source for the plutonium used for its power supply.
poirier@dg-rtp.dg.com (Charles Poirier) (10/13/89)
In article <24659@louie.udel.EDU> new@udel.EDU (Darren New) writes: >I understand that the Neptune pictures are too large to post. >Could somebody please convert the sounds that Voyager heard to >IFF-8SVX format and post these? I'm sure that these would take >much less bandwidth, especially with modern compression techniques. Most "natural" sounds do not compress well using normal (LZW-type) compression. There are no "runs" of the same sample value, and the values are pretty evenly distributed. You *can* get somewhere by using Fourier transforms, but (a) it's slow for a non-accelerated machine to do these transforms and (b) some transform-compression techniques result in a non-exact (though reasonably recognizeable) decompression. The appropriateness of such a posting is problematical. Say 20KHz of 8-bit samples, negligible compression, that's about 3 seconds of sound per canonical 60KB Usenet posting. I would "just say no" IMHO. Curmudgeonly yours, Charles Poirier