HDTenEightyP/NetNews huggingface dataset:
From: jim@baroque.Stanford.EDU (James Helman)
Subject: Re: Legal Visualization
Organization: Stanford University
Date: 1 Sep 92 22:42:03

	Legal viz is the ethically amorphous line of work I find myself in.

Legal vis is becoming a very big area, ethically amorphous or not.
Failure Analysis Associates and others in the "forensic engineering"
business are making wide use of computer generated imagery to
demonstrate *potential* scenarios to juries.  Even in the recent
Mitchell brothers fratricide-among-porno-kings case, the DA used a
computer simulation of the shooting.  It was the subject of some legal
wrangling and complaints about the cost to taxpayers.  I think part
was disallowed.

But Effective?  I remember seeing a simulation by Failure a few years
back demonstrating how wind shear *could* have caused an air crash.
Very effective.  After all, seeing is believing.

Safe prediction: synthetic computer graphics will come to dominate
multimedia visuals and those who believe them blindly will become
mindless drones.  Fortunately, I don't believe that many will.  And
fewer will with time.  Photorealistic images and animations no longer
imply reality.

	Crimson VGX is really a dreamboat

I won't debate this.

-jim helman
jimh@surreal.asd.sgi.com
415.390.1151
From: wes@maui.lbl.gov (Wes Bethel)
Newsgroups: comp.graphics.visualization
Subject: (Re: Histogram Equalization) image processing of multi-band images
Followup-To: comp.graphics.visualization
Date: 31 Aug 1992 16:01:41 GMT
Organization: Lawrence Berkeley Laboratory
NNTP-Posting-Host: maui.lbl.gov


In article <1992Aug26.205039.7555@rock.concert.net> krueger@rock.concert.net (Richard C Krueger -- Fauve Software) writes:
>I am trying to equalize a 24 bit color image. I have no
>problem with 8 bit grayscale images. I have tried equalizing
>each channel (R, G, and B) independently, but the results are
>not what you would expect. Has anyone out there solved this
>problem. Help or pointers to the right articles would be
>greatly appreciated.
>
>Richard Krueger.

We had a related problem here - we have a Kodak XL7700 printer which
tended to print images much "too dark." 

I began to investigate using gamma correction as a built-in part
of the print driver.  The thing I discovered, as I'm sure anyone
who has tried "image processing" of 24 bit images has discovered,
that by applying an intensity-modifying operator of some type 
(histogram eq, gamma correction, etc.) independantly to each color 
channel that one can get a really obnoxious hue shift.

To make a long gripe short, this was not OK.

One thing I tried was to convert from RGB space to HSV space,
and applying the operator to the V, or "brightness" component.
This worked OK in that the hues were preserved (e.g., brown didn't
turn purple), but was not completely satisfactory for my application
which was to provide an image from the printer that looked
"the same as" the one the scientist was looking at on their
monitor.

This raises the ugly head of device calibration which I wish
to avoid for the moment.

It seems that this process (convert to HSV, histogram eq the V,
then convert back to RGB) may work OK for histogram eq'ing
24 bit RGB images.

Try it and let us know how it turns out, ok?

As for us, it turns out that applying the gamma correction to each channel
independently IN GENERAL gave more satisfactory results than when tying
to preserve the hue and saturation and tweaking brightness only.

"Satisfactory" is a subject metric, of course, so your mileage will vary.

wes
ewbethel@lbl.gov
From: stgprao@st.unocal.COM (Richard Ottolini)
Newsgroups: comp.graphics.visualization
Subject: Re: siggraph?
Date: 28 Aug 92 23:26:12 GMT
Organization: Unocal Corporation (Anaheim CA)

In article <8ebYsrm00WB5J0k74j@andrew.cmu.edu> af1x+@andrew.cmu.edu (Alan S. Ferrency) writes:
>Hi.  I'd like information on siggraph.
>When and where is the next conference?  (I guess '92 already happened, where
>and when will '93 be?)

EM EYE SEE KAY EE WHY
EM OH YOU ES EE

Thats right folks!  See you all here in Disneyland,
the first week of August 1993!
From: charuhas@virtual4.harvard.edu (Thomas Charuhas)
Newsgroups: comp.graphics.visualization
Subject: 3rd Party Data Viz tools.
Date: 27 Aug 92 12:57:34 GMT
Organization: Aiken Computation Lab, Harvard University

Does anyone have a list of good data visualization tools.
(I.E. 3rd party products for any of Sun/Mac/NeXT etc)
If any at all come to mind, could you please send me
e-mail or post and also indicate what their specialty is ?

This will be greatly appreciated....

	Thomas
		charuhas@das.harvard.edu
Newsgroups: comp.graphics.visualization
From: stgprao@st.unocal.COM (Richard Ottolini)
Subject: Re: Legal Visualization
Organization: Unocal Corporation
Date: Wed, 2 Sep 1992 14:49:43 GMT

In article <JIM.92Sep1224203@baroque.Stanford.EDU> jim@baroque.Stanford.EDU (James Helman) writes:
>Safe prediction: synthetic computer graphics will come to dominate
>multimedia visuals and those who believe them blindly will become
>mindless drones.  Fortunately, I don't believe that many will.  And
>fewer will with time.  Photorealistic images and animations no longer
>imply reality.

Both sides in a large litigation will probably use good visuals.
It might be a problem if the defense could not afford to compete with the
prosecution.
Visuals were not allowed in the infamous King trial that started the 1992 LA
riot, but I don't know why.  The visual choreographed the beating the Mr. King.
A lot of the sorting of the evidence involved who hit who how many times
and that was confusing watching the original video tape.
From: charuhas@das.harvard.edu (Thomas Charuhas)
Newsgroups: comp.graphics.visualization
Subject: 3rd party Data Viz tools
Date: 27 Aug 92 12:58:20 GMT
Organization: Aiken Computation Lab, Harvard University

Does anyone have a list of good data visualization tools.
(I.E. 3rd party products for any of Sun/Mac/NeXT etc)
If any at all come to mind, could you please send me
e-mail or post and also indicate what their specialty is ?

This will be greatly appreciated....

	Thomas
	charuhas@das.harvard.edu
From: krueger@rock.concert.net (Richard C Krueger -- Fauve Software)
Newsgroups: comp.graphics.visualization
Subject: Histogram Equalization
Date: 26 Aug 92 20:50:39 GMT
Organization: CONCERT-CONNECT -- Public Access UNIX

I am trying to equalize a 24 bit color image. I have no
problem with 8 bit grayscale images. I have tried equalizing
each channel (R, G, and B) independently, but the results are
not what you would expect. Has anyone out there solved this
problem. Help or pointers to the right articles would be
greatly appreciated.

Richard Krueger.
From: ara@zurich.ai.mit.edu (Allan Adler)
Newsgroups: comp.graphics
Subject: tiff software for PC
Date: 31 Aug 92 03:54:48 GMT
Distribution: comp
Organization: M.I.T. Artificial Intelligence Lab.


I am posting this for a friend of mine. Please reply directly to him at
SHOTLAND@SBBIOVM.BITNET.

My friend is interested in software (commercial or shareware or whatever)
for reading and writing TIFF files on an 80386 PC running MSDOS. He has looked
at the FAQ list for this newsgroup and obtained  Leffler's stuff. However,
he also wants to know if there is anything else for his platform.
From: newberry@newton.as.arizona.edu (Mike Newberry)
Newsgroups: comp.graphics
Subject: About programming S3 cards direct to hardware
Date: 27 Aug 92 22:11:12 GMT
Organization: University of Arizona, Tucson, AZ

Does anyone know where I can get information about programming the new
S3 cards?  I have programmed Paradise and ET-4000 SVGA cards in assembly
language and I'd like to know about the capabilities of S3 cards and
where I can get port and memory mapping information for them so that I
can decide whether or not it is worth porting a non-Windows based GUI
to them.

Thanks for any info you can provide,

Mike Newberry
newberry@astro.as.arizona.edu
Newsgroups: comp.graphics,comp.multimedia,misc.jobs.offered
From: julian@sun-1.cs.uct.ac.za (Julian Hansen)
Subject: FLI animation
Summary: FLI file format etc?
Keywords: FLI, Frame to Frame Coherence
Organization: Computer Science Department, University of Cape Town
Date: Tue, 1 Sep 1992 10:04:55 GMT

Hullo world,

Can anyone out there point me in the right direction? I am interested in
finding out more about FLI file format for animated sequences. I would like
some general info such as :

	What is the format?
	How is it implemented / interpruted?
	Anything else you might think relevant.

I am particularly interested in how closely FLI format is related to
Frame-to-Frame coherence?

Can anyone help me please.

Tank u veddy mush

julian

Email julian@sun-3.cs.uct.ac.za

Newsgroups: comp.graphics
From: pausch@uvacs.cs.Virginia.EDU (Randy Pausch)
Subject: Re: Address of Polhemus - makers of 6d input device
Reply-To: pausch@Virginia.EDU
Organization: University of Virginia Computer Science Department
Date: Fri, 28 Aug 1992 17:31:21 GMT

Polhemus Incorporated
Digitizer: 6d trackers
P.O. Box 560, Hercules Dr.
Colchester, Vt. 05446
Tel: (802) 655-3159

other 6d device companies you may also want to investigate:

Ascension Technology
Bird, Flock of Birds, Big Bird: 6d trackers
P.O. Box 527
Burlington, VT 05402
Tel: (802) 655-7879
Fax: (802) 655-5095

Logitech Inc.
Red Baron, ultrasonic 6D mouse
6506 Kaiser Dr.
Freemont, CA 94555
Tel: (415) 795-8500w


Shooting Star Technology
Mechanical Headtracker
1921 Holdom Ave.
Burnaby, B.C. Canada V5B 3W4
Tel: (604) 298-8574
Fax: (604) 298-8580

Spaceball Technologies, Inc.
Spaceball: 6d stationary input device
600 Suffolk Street
Lowell, MA, 01854
Tel: (508) 970-0330 
Fax: (508) 970-0199
Tel in Mountain View: (415) 966-8123 

Transfinite Systems 
Gold Brick: PowerGlove for Macintosh
P.O. Box N
MIT Branch Post Office
Cambridge, MA 02139-0903
Tel: (617) 969-9570
email: D2002@AppleLink.Apple.com

VPL Research, Inc.
EyePhone: head-mounted display
DataGlove: glove/hand input device
VPL Research Inc.
950 Tower Lane
14th Floor
Foster City, CA 94404
Tel: (415) 312-0200
Fax: (415) 312-9356


SimGraphics Engineering
Flying Mouse: 6d input device
1137 Huntington Rd. Suite A-1
South Pasadena, CA 91030-4563
(213) 255-0900

Newsgroups: comp.graphics
From: iskandar@nynexst.com (Sam Iskandar)
Subject: Recommendation on high res scanner
Reply-To: iskandar@nynexst.com
Organization: Sun Microsystems, Inc.
Date: Mon, 31 Aug 92 15:35:54 GMT

Hi,

I am looking for a very high resolution scanner (>1200 dpi) for use in professional
printing. Also, I am looking for a Color Separation solution. Do you know of any
scanners that perform color separation (i.e. scanner scanns color images, and outputs
negatives that can be used to reproduce the colors). I know Adobe has a color
separation software, do you know of any other more powerful ones. Any recommendations
on scanners and color separation solution would be appreciated.

You're probably better off e-mailing me directly, since not too many people are
interested in that kind of info.

Thanks very much.
Sam

---
============================================================
Sam Iskandar - MTS             E-mail: iskandar@nynexst.com
Nynex Science & Technology     Phone:  (914)644-2548
============================================================

Newsgroups: comp.graphics
From: kkt@philabs.philips.com (Kim-Kiat Tan)
Subject: Re: What is a good book for Digital Image Processing?
Organization: Philips Laboratories, Briarcliff, New York
Date: Sat, 29 Aug 1992 13:49:10 GMT

In article <17lb41INNik7@network.ucsd.edu> spl@pitstop.ucsd.edu (Steve Lamont) writes:
>In article <1992Aug27.172834@firewalladaclabs.com> jlc@firewalladaclabs.com (Jean-Luc Chatelain) writes:
>>Digital Image Processing
>>by Williwam K Pratt
>>Prentice and Hall (I think)
>>
>>This is one of the bibles (along with one by Gonzales)
>
>Pratt, William K., _Digital Image Processing, Second Edition_.  New
>York, John Wiley and Sons. (1991) ISBN 0-471-85766-1
>
>							spl

	This is the bible alright, but for a beginner, from my experience, 
Gonzales is a much better book, just like K&R for C,it's a bible alright, but
you would be better off to use other book when you just started to learn C.`

Newsgroups: comp.graphics
From: jpenne@ee.ualberta.ca (Jerry Penner)
Subject: Re: Algorithm wanted: bitmap skewing in 3D surface
Organization: University Of Alberta, Edmonton Canada
Date: Mon, 31 Aug 1992 04:28:22 GMT

cs8023@ee21.ncu.edu.tw (ee76536 [Anthony]) writes:

[...]
>I have a planar bitmap picture, and I want to paste this bitmap onto a
>3d planar surface, and as you can see, I need a transform to skew bitmap
>so that it can fit the angle of viewpoint.
>I knew that if I use transform from 2D map to 3D, it may leave some
>holes, so I need a transform from 3D surface to 2D.
>any idea about this, or you can give a greatly hand if you know where I
>can find the releated books/documents/software?

Well, it seems to me that if, as you say above, you are going from a
planar 2D bitmap to a _planar_ 3D surface, you can just transform the
corners of the 2D bitmap to 3D, and then project the 3D coordinates
corresponding to the corners of the bitmap back to 2D screen
coordinates.  Then you can just use a 2D polygon skewing algorithm
which maps from destination back to source for each pixel.  That's the
first thing that comes to my mind.  Any holes in it?  (pun not
intended)
-- 
Jerry Penner   jpenne@ee.ualberta.ca   Try a 1-line .sig today.
Newsgroups: comp.graphics
Subject: Re: Publish the CD!
From: rsc@altair.csustan.edu (Steve Cunningham)
Date: Tue, 25 Aug 92 18:54:33 GMT
Organization: California State University, Stanislaus
Summary: We'll do it when we can afford it...

In <3kmypzr@rpi.edu>, wrf@ecse.rpi.edu (Wm Randolph Franklin) says:

> In article <1992Aug15.194127.28010@koko.csustan.edu> on Sat, 15 Aug 92
> 19:41:27 GMT, rsc@altair.csustan.edu (Steve Cunningham) writes:
> 
> > There have always been a number of conference-only materials at SIGGRAPH,
> > paid for by the conference and not by member fees.  We look forward to
> > making electronic publications part of our member services in the future
> > and this CD-ROM experiment will help us do this more successfully, but
> > SIGGRAPH publications do not have the $50,000 to send this to all members.
> >
> > -- Steve Cunningham
> >    SIGGRAPH director for publications
> 
> "SIGGRAPH publications" might not have the money, but what about other
> parts of SIGGRAPH?  In previous years the conference tended to net
> profits in the 7 figures.  How are things this year?  Could the
> reproduction of the disk be worked into the SIGGRAPH conference budget
> before that is closed?

I understand the frustration expressed here, but the recession has hit
professional societies and conferences very heavily, and it just isn't
going to happen this year...
 
> Alternately the disk should be included in next year's "Publication"
> budget and sent to all members.

It's very gratifying to hear this amount of interest in the SIGGRAPH '92 disk,
but we really believe the pilot project isn't yet functional enough to merit
this wide distribution.  However, we are doing our best to build on '92 and
create some really great electronic publications (probably CD-ROM, but we're
not restricting ourselves to this medium) for SIGGRAPH '93.  And we'll have
the time to plan for this and make them much more widely available than the
'92 ones were.

Downside:  cost, of course.  I plan to post a note soon discussing member
benefits and costs for SIGGRAPH, and hope to have lots of comments back from
people in this forum.  The key, though, is that we get what we pay for, and
SIGGRAPH doesn't know how many people want what benefits enough to support
their creation.  Please help us learn what really is wanted.  End of
commercial.
 
> SIGGRAPH should also try to keep the course notes in print.  The excuse
> in the past has been that they are a function (only) of the conference,
> and since the conference organization closes its books, there is no way
> to keep selling them.  This seems like the triumph of the bureaucracy
> over commonsense.  Those notes often have material that is not published
> anywhere else.  It's written by industry people who are not in a
> publish-or-perish mode and so don't always write papers, but who will
> write up informal notes for a fee.

Different problem -- the main difficulty is copyright.  However, we are looking
hard at this one too, and we appreciate this indication that you find course
notes valuable enough to buy and archive.  Duly noted.

-- Steve Cunningham
From: colint@spider.co.uk (Colin Tinto)
Newsgroups: comp.graphics
Subject: Character Recognition Algorithm Needed
Date: 27 Aug 92 16:34:31 GMT
Organization: Spider Systems Limited, Edinburgh, UK

Newsgroups: comp.ai.vision
Subject: Character Recognition Algorithm Needed
Summary: 
Followup-To: 
Distribution: world
Organization: Spider Systems Limited, Edinburgh, UK
Keywords: 

I am working on a project at home and need to get hold of an
algorithm that can recognise printed characters from a section of 
bitmapped graphics, with reasonable speed.

Can anyone here supply me with any ideas ?   Any references to Papers or
Books ?  Or even another group that may have more information ?

All help appreciated...
-- 
/-----------------------------------------------------------------------------\
!   Colin Tinto			!  Time Travel Parcel Deliveries Inc          !
!   colint@spider.co.uk		!  The only courier with previous day service.!
\-----------------------------------------------------------------------------/
Xref: sparky comp.graphics:9421 comp.graphics.visualization:1300 comp.sys.ibm.pc.hardware:23354
From: reuel@blivet.houst.sgi.com (Reuel Nash)
Newsgroups: comp.graphics,comp.graphics.visualization,comp.sys.ibm.pc.hardware
Subject: Re: Looking for polygon engine hardware
Date: 3 Sep 92 19:33:38 GMT
Reply-To: reuel@blivet.houst.sgi.com (Reuel Nash)
Organization: Silicon Graphics Inc., Mountain View, CA


In article <1992Aug31.212434.23809@microunity.com>, jsw@microunity.com
(Jeff Weinstein) writes:
|> In article <1992Aug31.141110.12707@thunder.mcrcim.mcgill.edu>,
panisset@lightning.mcrcim.mcgill.edu (Jean-Francois Panisset) writes:
|> > In article <1992Aug30.033019.26946@mnemosyne.cs.du.edu>
wdwells@nyx.cs.du.edu (David "Fuzzy" Wells) writes:
|> > >Won't the IRISVision cards do this? 
|> > 
|> > I may be wrong, but I think the IRISVision product line (i.e. the
equivalent
|> > of Personal Iris graphics on a PC adapter) was dropped by SGI not
long after
|> > it was introduced. In my mind, such a product just does not make a lot
|> > of sense when you look at the price of an Indigo...
|> 
|>   The IRISVision product has been picked up by pellucid, inc.  They are a
|> startup founded by some ex-sgi employees.


I happen to have a business card:

pellucid, inc 
3180 De La Cruz Blvd., SUite 201
Santa Clara, CA  95054
(408)987-0315
fax (408)986-8378

(I'm not associated with pellucid. I work for SGI)

Reuel Nash				Email:	reuel@sgi.sgi.com  
"Question Skepticism"			Phone:	713-293-9292 
USMail:	 Silicon Graphics, 11490 Westheimer Suite 100, Houston, TX  77077
Newsgroups: comp.graphics
From: haseka@aix.rpi.edu (Atilla A Hasekioglu)
Subject: Re:multimedia
Organization: Rensselaer Polytechnic Institute, Troy NY
Date: Wed, 2 Sep 1992 20:46:05 GMT

I wrote before:

I am looking for a multimedia software that compresses images and has mailing 
options. This should be in Xwindows. I have images in many formats.
I would like to be able to change their formats and have printouts. I also
would like to be able to view them. The software I am looking for should
have all these options. I also would like to have the option to decompress and
view the image from where it is sent by mail, so this will be a two sided
software that can be used both by the sender and receiver  side.
  If anybody can help me,I will very much appreciate it.



I found the multimedia software I was looking for from a colleague, if
anybody is interested.It is very useful. It is for SUN and performs the
compression in JPEG. It has file conversion facilities in GIF, PPM,PGM,
TIFF, SUN raster, XBM, XWD, FAX G3 formats. It has also an option to
change from these formats to PS format and you can later print it.
It also mails the compressed image by email. At the other end the receiver
can make necessary format changes and view the image. My colleague says
he is very happy with this product, and it is indeed very useful.
For the interested you can find this software from :
IBS
1223 Peoples Ave.
Troy, NY 12180
Tel : 518 276 4770
Fax: 518 276 6380

 The name of the software is MultiMailv1.0.


















Newsgroups: comp.graphics
From: cpetterb@javelin.sim.es.com (Cary Petterborg)
Subject: Re: Next SIGGRAPH?
Organization: Evans & Sutherland Computer Corp.
Date: Wed, 26 Aug 1992 20:20:17 GMT

In article <1992Aug26.152104.14792@ccu.umanitoba.ca> vivanco@ccu.umanitoba.ca (Rodrigo Vivanco) writes:

>   can someone tell me when and where SIGGRAPH '93 will be held?

ANAHEIM!!!!!!!!!!!!!!!!!!!!!!

This is usually the place that gets the largest attendance (Disneyland,
and all you know).

Cary
--
_______________
Cary Petterborg					   (801)582-5847 x6893
Evans & Sutherland Computer Corp.  Simulation Division   SLC, UT 84108
UUCP: ...!uunet!sim.es.com!cpetterb  *NET: cpetterb@javelin.sim.es.com
_______________
Not everything that counts can be counted.  Not everything that can be
counted counts.   - Charles Garfield
Organization: Valencia University (Universitat de Valencia) SPAIN
Date: Wednesday, 26 Aug 1992 17:50:30 EST
From: <ARTIGAS@EVALUN11.BITNET>
Newsgroups: comp.graphics
Subject: CGM Format needed URGENTLY

  We DO need a complete description of CGM format, as our work is stucked
without this information.
  Can anybody tell us ftp sites or even send a copy of the format?

  thanks in advance,  :-)
                                       Alvaro Pons
                                       Sergio Diez
                                 at artigas@vm.ci.uv.es
From: davej@sp31.csrd.uiuc.edu (David J. Jablonowski)
Newsgroups: comp.graphics.avs
Subject: AVS Overview
Date: 3 Sep 92 18:14:04 GMT
Article-I.D.: csrd.1992Sep3.181404.9093
Organization: UIUC Center for Supercomputing Research and Development


   I'm looking for an overview on AVS, especially the process of
building new modules. I am doing some work which should be able to use
AVS as a front end, but to be sure I want to find out a little more about
AVS. I talked to some people at the AVS center, and all they sent me was
the promotional spiffy sales stuff. What I want is the equivalent of a
long technical paper on AVS.

  Any pointers are appreciated.

   Also, can anyone tell me any significant differences between the AVS
system and the IRIS Explorer system.
Newsgroups: comp.graphics.avs
From: larryg@avs.com (Larry Gelberg)
Subject: Re: How to assign uvw data?
Organization: Advanced Visual Systems Inc.
X-Newsreader: Tin 1.1 PL4
Date: Fri, 4 Sep 1992 14:06:15 GMT
X-Posted-From: aurora.avs.com
X-Posted-Through: sol.ctr.columbia.edu

Keith,

Here are the relevant lines of code from the 'brick' module.
The functions are essentially the same as the UV functions
but extended in (hopefully) obvious ways.  Let me know if
you need some clarification on this stuff.


  *output = (GEOMedit_list *)GEOMinit_edit_list(*output);
  
  obj = GEOMcreate_obj(GEOM_POLYTRI,GEOM_NULL);
  if(num_vertex > 0) {
      GEOMadd_polytriangle(obj,pt_list,nl_list,NULL,num_vertex,GEOM_COPY_DATA);
      GEOMadd_polytriangle_uvws(obj,uv_list,0,num_vertex,GEOM_COPY_DATA);
  }
  GEOMedit_geometry(*output, "brick", obj);
  GEOMedit_texture(*output, "brick", "dynamic");
  GEOMdestroy_obj(obj);

I hope this helps,
larryg

--
=== Larry Gelberg ============================ larryg@avs.com =======
      Advanced Visual Systems Inc. (AVS Inc.)
      300 Fifth Ave, Waltham, MA 02154
===== Tel: 617-890-4300 = Fax: 617-890-8287 =========================
Newsgroups: comp.graphics.avs