HDTenEightyP/NetNews huggingface dataset:
From: soam@freyja.cs.cornell.edu (Soam Acharya)
Subject:  Convert YUV data to RGB
Keywords:  YUV, RGB, digital video, image conversion
Reply-To: soam@freyja.cs.cornell.edu (Soam Acharya)
Organization:  Sometimes The Sun Shines In Ithaca Dept
Date: Wed, 22 Jul 1992 03:24:23 GMT

Greetings all,

I am looking for pointers in converting digital YUV data to standard RGB
format.  Now, I believe there are multiple ways by which YUV data may be
represented.  For example, the pbmplus toolkit has a program that converts
Abekas YUV bytes into a portable pixmap but I am not sure whether this is 
the same YUV format used by the Sun VideoPix board which uses the SAA9051
Digital Decoder chip to convert composite video into 4:1:1 YUV data.  By
4:1:1 format I mean for example 8-bit data where there are 8 bits of Y for
every 2 bits of U and V.  

So, my question is: does there exist a standard way of converting the YUV
data ( once I have extracted the Y, U and V components ) to RGB regardless
of the format in which the YUV information was actually represented?

Many thanks

Soam

PS - I'll post a summary.

---------------------------------------------------------------------------
   Soam Acharya					soam@ee.cornell.edu
   Eng. & Theory Center, #369			soam@cs.cornell.edu
   Cornell University				607-254-8811
   Ithaca, NY 14853
  
   "I think I am a wit.  But, my friends say that I am only half right!"
Newsgroups: comp.graphics
From: andy@osea.demon.co.uk (Andrew Haveland-Robinson)
Subject: POV Source Code wanted 
Distribution: world
Organization: Haveland-Robinson Associates
Date: Fri, 31 Jul 1992 01:32:06 +0000


In article <BrqtD2.KCp@watserv1.waterloo.edu> broehl@sunee.waterloo.edu writes:

>Somebody wrote a DXF to DKB converter a while back (though it had some
>limitations).
>
>3DS format is pretty simple, I believe; it's all just triangles, right?
>(Actually, if you could post the 3DS format description I'd be interested
>in seeing it).

I found a version somewhere in the dregs of this 700meg drive, but I don't
think it's terribly useful.  Some of the meshes I have are very complex.

Initial examination of the 3ds, lft, and shp file formats reveal them
to be binary with embedded strings.  I guess Autodesk would have 
"the knowledge".

Andy.

+-------------------------------------------------------------------------+
| Haveland-Robinson Associates     | Email: andy@osea.demon.co.uk         |
| Pine Cottage, Osea Island, Essex |        ahaveland@cix.compulink.co.uk |
| CM9 8UH England.  0621-88756     | Also:  081-800 1708  081-802 4502    |
+-------------------------------------------------------------------------+
Newsgroups: comp.graphics
From: val@marsh.cs.curtin.edu.au (Valerie Hall)
Subject: Re: Is there a FAQ for this group?
Keywords: FAQ, questions
Organization: Curtin University of Technology
Date: Fri, 24 Jul 1992 00:10:41 GMT




Maybe we should have a FAQ that says that there is no FAQ?!?!


Just a thought...



Valerie.

--
--------------------------------------------------- /\_/\  
  My other car is a broom!                         / O O \  
  val@marsh.cs.curtin.edu.au                  FOX  \ \./ / 
--------------------------------------------------------- 
Newsgroups: comp.graphics,alt.graphics.pixutils
From: Frank.Neumann@arbi.informatik.uni-oldenburg.de (Frank Neumann)
Subject: Re: PoV newsgroup or mailing list?
Organization: University of Oldenburg, Germany
Date: Sun, 26 Jul 1992 15:21:53 GMT
Keywords: mailing list

Hi there,
rene@hardy.u.washington.edu (Rene Magritte) writes:
>     	Particularly now that POV 1.0 has been released, I was
>wondering if anyone knows of an existing or planned newsgroup or
>mailing list to support this raytracer.  One would think that people
>would be interested in such a group.... 

Such a list does indeed exist, although the traffic isn't very high.
To subscribe, send a mail containing the body
subscribe dkb-l <Your full name>

to listserv@trearn.bitnet  (yes, that's in Turkey).

You will then be added to the list, and every mail that you send to
dkb-l@trearn.bitnet
goes to anyone else subscribed on the list.

Good luck,
Frank
-- 
+ Frank Neumann, Hauptstr. 107, 2900 Oldenburg, FRG   The Amiga is it.  +
+       InterNet: Frank.Neumann@arbi.informatik.uni-oldenburg.de        +
+       UUCP: neumann@uniol.uucp   \\//    InHouse:amigo@faramir        +
+ Zerberus: neumann@uniol.zer BitNet:295391@DOLUNI1.BITNET IRC: Franky  +
+      "Click Proceed to stop or Abort to resume Bad Block Re-Map"      +
+                -- GVP FastPrep, gesehen am 13.07.1992                 +
From: foo@capncrunch.Eng.Sun.COM (Mark Hall)
Newsgroups: comp.graphics
Subject: Re: Siggraph receptions
Date: 21 Jul 1992 18:31:58 GMT
Organization: Sun Microsystems, Mt. View, Ca.
NNTP-Posting-Host: capncrunch

In article <14h8r3INN7k5@cs.utexas.edu> kelvin@cs.utexas.edu (Kelvin Thompson) writes:
)Where are the Courses and Papers/Panels receptions going to be
)at Siggraph this year?

   Courses:        Navy Pier
   Papers/Panels:  Hyatt Regency

Xref: sparky comp.graphics:8133 alt.graphics.pixutils:1808
From: macphed@dvinci.USask.Ca (Ian MacPhedran)
Newsgroups: comp.graphics,alt.graphics.pixutils
Subject: Re: hpgltoppm; hpgltopgm ??? PEN-Plotter --> PBMPLUS
Date: 24 Jul 92 22:09:01 GMT
Reply-To: macphed@dvinci.USask.Ca
Organization: University of Saskatchewan
Originator: macphed@dvinci

From article <1992Jul20.145141.2471@Urmel.Informatik.RWTH-Aachen.DE>, by jogl@merry.imsd.rwth-aachen.de (Joachim Glaubrecht  #Alwd#):
> 
> sorry, if this is a FAQ, but:
> is there ANY hpgl-plotter-language to PBMPLUS converter ?
> ANY hint is wellcome!

Well, if you're really desperate, you could use hpgl2ps to convert your
HPGL to PostScript, and Ghostscript (2.4.1 current version) to convert
the PostScript to PPM.

Ian. 
> -- 
>   ___             ____________________________________
>  /  /  _____     !  jogl@tolkien.imsd.rwth-aachen.de  !
>  __/__/_/ Gl     ! Inst. f. Med. Stat. & Doku. (IMSD) !
> /_/              !___Aachen__Germany__Europe__Earth___!


----------------------------------------------------------------------------
Ian MacPhedran, Engineering Computer Centre, University of Saskatchewan.
2B13 Engineering Building, U. of S. Campus, Saskatoon, Sask., CANADA S7N 0W0
macphed@dvinci.USask.CA  macphedran@sask.USask.CA
-- 
----------------------------------------------------------------------------
Ian MacPhedran, Engineering Computer Centre, University of Saskatchewan.
2B13 Engineering Building, U. of S. Campus, Saskatoon, Sask., CANADA S7N 0W0
macphed@dvinci.USask.CA  macphedran@sask.USask.CA
From: hontanon@a.cs.wvu.wvnet.edu (Ramon J. Hontanon)
Newsgroups: comp.graphics
Subject: ALGORITHM NEEDED: Contour Plots
Date: 31 Jul 92 18:39:24 GMT

Hello All:

This is my first posting to the group, so I apologize if the matter isn't
relevant. I did look around and couldn't find anything, so here it goes:

I am developing an application that displays arrays of points in different
ways, one of which is contour plots. My contouring algorithm was taken
from the article "A Contouring Subroutine" by Paul D. Bourke, BYTE magazine
June 1987. It's a very simple algorithm, but I know there are other 
algs. out there and I'd like to incorporate more than one choice of 
contouring algorithms into the system.

Any leads to any article, document, reference (on or offline) will 
be greatly appreciated. Both E-Mail and Posts are OK.

Thanks in advance.

Ramon

   -------------------------------------------------------------------
  | Ramon J. Hontanon  KE8SF  | "Life can only be understood backward,|
  | Flow Cytometry Lab - FDA  |   yet, it has to be lived forward"    | 
  | hontanon@cs.wvu.wvnet.edu |            -- Soren Kierkegaard       | 
   -------------------------------------------------------------------
From: halldor@groebner.me.washington.edu (Halldor Magnusson)
Newsgroups: comp.graphics
Subject: EMAIL: Alyn P. Rockwood ?
Date: 21 Jul 92 22:14:37 GMT
Article-I.D.: u.1992Jul21.221437.5678
Organization: University of Washington

Does anyone in comp.graphics know of a valid E-mail address for 
Alyn P. Rockwood.  Last know location was SGI.  Thanks....
	
				Halldor
From: sl859@cc.usu.edu
Newsgroups: comp.graphics
Subject: PLANET EARTH: LAST CALL...
Date: 28 Jul 92 10:50:08 MDT
Organization: Utah State University

Hi all,
	Thankyou to all those who replied to my previous message.
This is a last call, before I post the results of my search for 
graphics images of the planet earth.  I want to thank all who replied
previously and if you did reply and would prefer that I didn't post 
your name or posting tell me and I will delete the part you wish the
world not to see.:)
	For those of you who missed it the first time around.  I am 
looking for graphics on the planet earth.  My friend is going to then
take the flat image and map it to a sphere.  He's using an IBM so if 
the file formats are really whacked out he may be posting something 
asking for file format converters or what not, but I wouldn't worry 
about that.  Please send any and all info you have.  I don't care if
its really obscure, I'll try to fish through it all and then next week
I will repost all the messages with lots of :)'s and thanks!!!
	For those of you who have expressed an interest in the project
I can send via email a copy of the results and the email address of
my friend doing the project, once he gets one, to you personally.  Email
your requests, after all, Email is Life!!!
						wReam...
P.S.  I think my terminal is ill.  Its TERMINALLY ILL !!!! Ha Ha Ha!
      (don't I do the BEST puns!?)
From: davei@comp.lancs.ac.uk (Mr D Ingles)
Newsgroups: comp.graphics
Subject: PBMPLUS
Date: 23 Jul 92 09:20:12 GMT
Organization: Department of Computing at Lancaster University, UK.

Has anyone successfully used the DOS version of PBMPLUS ? I downloaded it
and tried running it but ended up getting the following error message :

    CPU must be in REAL mode (not V86 mode) to run this program.

I am trying to run it on a 486 based machine.

Davei (davei@lancaster.ac.uk)
 
Xref: sparky comp.graphics:8239 comp.terminals.bitgraph:2
From: tesco@bumetb.bu.edu (Dances With Babes)
Newsgroups: comp.graphics,comp.terminals.bitgraph
Subject: BITMAP DISPLAY PROGRAM
Keywords: help, bitmap
Date: 28 Jul 92 21:47:19 GMT
Reply-To: tesco@bumetb.bu.edu (Dances With Babes)
Followup-To: comp.graphics
Distribution: comp
Organization: Boston University

I hope this isn't a stupid question, but i could use some help.

Does anybody know if there's a public domain program somewhere which will
allow me to display a bitmap on an IBM 8508 (X-Terminal)?

Thanks for the help....
-tesco
Newsgroups: comp.graphics,comp.sources.wanted
From: watson@maths.uwa.oz.au (David Watson)
Subject: Re: Help on Delaunay Triangulation
Keywords: Delaunay triangulation
Organization: University of Western Australia
Date: Wed, 29 Jul 1992 23:57:04 GMT

edwarda@yoyo.cc.monash.edu.au (Edward Au) writes:

>Delaunay triangulation is an optimal triangulation of a set of data points.
>Does anyone know where I can get algorithms or preferably source code on
>this triangulation method?

A FORTRAN program to generate the Delaunay triangulation can be ftp'd
from
		 garbo.uwasa.fi  /pc/source/contour.f

--
Dave Watson                           Internet: watson@maths.uwa.oz.au
Department of Mathematics            
The University of Western Australia               Tel: (61 9) 380 3359
Nedlands, WA 6009  Australia.                     FAX: (61 9) 380 1028
Newsgroups: comp.graphics
From: eloranta@janus.hut.fi (Kari Eloranta)
Subject: graph plot
Organization: Helsinki University of Technology, Finland
Date: Mon, 20 Jul 1992 13:10:00 GMT


Could anybody recommend a good piece of software for plotting graphs?  
Such that deals fluently with non-planar graphs and gives some  
freedom in choosing the node positions as well as their graphic  
representation. Public domain stuff preferred. NeXTware extra  
brilliant. Thanks for your e-mail response.

Kari Eloranta

 

-- NewsGrazer, a NeXTstep(tm) news reader, posting --
M>UQR=&8P7&%N<VE[7&9O;G1T8FQ<9C!<9FUO9&5R;B!#;W5R:65R.WT*7&UA
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B<F5S<&]N<V4N7`I<"DMA<FD@16QO<F%N=&%<"EP*(`I]"F]U
`
Newsgroups: comp.graphics,comp.os.ms-windows.apps
From: tatsvm2@bnr.ca (James Waletzky)
Subject: Re: Address of COREL wanted...
Reply-To: tatsvm2@bnr.ca (James Waletzky)
Organization: Bell-Northern Research Ltd.
Date: Thu, 23 Jul 92 17:58:12 GMT

In article <AePSUOC00WB_QC930f@andrew.cmu.edu>, dp2r+@andrew.cmu.edu (Denise Pullen) writes:
|> Excerpts from netnews.comp.os.ms-windows.apps: 22-Jul-92 Address of
|> COREL wanted... by Stephan Petersen@DJUKFA1
|> > I'm looking for the address of COREL Systems in Ontario, Canada.
|> > If anybody out there knows, could you please drop me a line? (Also, fax
|> > numbers and email addresses would be very helpful.)
|>
|> I thought I had their address floating around here somewhere but I can't
|> find it right now. There phone #'s are:
|>
|> 1-800-836-3729
|> 613-728-8200 (Canada)
|> 613-761-9176 (Fax)

Here's the address:

   Corel Corporation
   1600 Carling Avenue
   Ottawa, Ontario
   K1Z 8R7

James.
    _____________________________  ______________________________________
  /                             //                                      /|
/____________________________ //______________________________________/  |
| James Waletzky             ||  Command, n.:                        |   |
| E-Mail: tatsvm2@bnr.ca     ||     - Statement presented by a human |   |
| (613)-763-5132             ||       and accepted by a computer in  |   |
|                            ||       such a manner as to make the   |   |
| C:\> unzip disclaimer.zip  ||       human FEEL as if he/she is in  |   |
|                            ||       control.                       |  /
|____________________________||______________________________________|/


Newsgroups: comp.graphics
From: stgprao@xing.unocal.com (Richard Ottolini)
Subject: Re: in-betweening for cartoons .
Originator: stgprao@xing
Organization: Unocal Corporation
Date: Wed, 29 Jul 1992 23:47:10 GMT

In article <#j1xs_q@rpi.edu> ncc1701@acm.rpi.edu writes:
>laborel@zig.inria.fr (Louis Laborelli) writes:
>
>>I would like to know more about computer aided cartoons, 
>>ie the use of a program to interpolate between different frames.
>>Is the process completly automated now ? 
>>Any references or addresses of companies doing that ?
>>How different it is from morphing ? 
>
>It's rather difficult to get a program to do tweening.  Most computer
>programs can only do linear interpolation between frames, which is
>NOT tweening--it is morphing.  Morphed motion, while occasionally
>desirable, is usually not, for animation purposes.
>
>For instance, take an animation of someone walking.  When you
>walk, your leg moves forward quickly, slows as you step on it,
>reverses direction, gaining speed until you bring it back again.
>If you do simple interpolation, it'll look wierd...very robotic.
>
>There is a program out now for IBM PC's that allows you control over
>the morphing, so you _can_ get tweening results (specifically,
>it allows you to control the rate of change between individual 
>frames).

It is a matter of building more rules-of-thumb in tweening programs for
how different objects move.  Some rules be based on physics, some on
empirical observation, and some on stylistic flairs (e.g. stretched necks
when falling off a cliff.)  It will probably be an AI'ish thing.
I think the technology is there, but not perhaps the quality and economic
incentive- yet.
Newsgroups: comp.graphics
Subject: Help wanted writing RGB files (Personal Iris systems)
From: <SONDLEEN@HASARA11.BITNET>
Date: Friday, 24 Jul 1992 14:52:01 CET
Organization: SARA - Stichting Academisch Rekencentrum Amsterdam

I want to know how to write RGB files directly from within a program.
Therefore, I need the format specifications of RGB files. Who knows a solution
or who knows where I can find this information?
 
Rik Leenders
E-mail: leenders@sara.nl
Xref: sparky comp.graphics:8175 alt.graphics.pixutils:1822
From: alexw@cyclops.intel.com (Alex Witkowski)
Newsgroups: comp.graphics,alt.graphics.pixutils
Subject: Re: Latest Source of XV - Please Post
Keywords: XV
Date: 27 Jul 92 04:54:22 GMT
Reply-To: alexw@cyclops.UUCP (Alex Witkowski)
Organization: Intel Corporation, Santa Clara, CA

Please post the source code for XV (I believe this also known as xview
and xloadimage).  I do not have access to anonymous ftp as far as I can
tell. 

Alex


-------------------------------------------------------------------------------
Alex Witkowski        
Intel Corporation     internet: alexw@t12sys.intel.com   
Santa Clara, CA 95051 uucp:     ...!{decwrl|hplabs!oliveb}!intelca!t12sys!alexw
Newsgroups: comp.graphics
From: dchin@rebekah.msc.cornell.edu (David W. Chin)
Subject: How to create a T-1000-like object?
Keywords: human form, software
Organization: Cornell-Materials-Science-Center
Date: Thu, 23 Jul 1992 22:49:07 GMT

I am trying to find some way of "drawing" a 3D object that looks like the
T1000 in "Terminator 2".  I am doing this on the Mac, and hopefully, the
software that is used will save files in a form readable by "StrataVision
3D".  StrataVision has a tool which forms a Bezier (?) surface over cross
sections of an object which one inputs, but this doesn't look good.  And I
don't know how else to put a surface on a series of cross-sections.  The
StrataVision manual has an example illustration which shows a (female)
human face, which looks pretty good.  Unfortunately, they don't say
anything about who made it or how.

Also, any StrataVision users out there who have a human skin texture?

I'm playing with Strata this summer for the Resident Lighting Designer here
at Cornell's Theatre Arts Center.  He would like to be able to use Strata
as a design tool.

Thanks muchly in advance.

--Dave Chin
dchin@helios.tn.cornell.edu  }  Internet
iojj@vax5.cit.cornell.edu    }
dchin@crnlassp  }  Bitnet
iojj@crnlvax5   }

Newsgroups: comp.graphics
From: exk11@po.CWRU.Edu (Erik Kangas)
Subject: BGI mouse driver v1.5
Reply-To: exk11@po.CWRU.Edu (Erik Kangas)
Organization: Case Western Reserve University, Cleveland, OH (USA)
Date: Mon, 27 Jul 92 14:29:20 GMT


Thankyou to all those who've used my SVGA.VGA mouse driver for 
BGI graphics modes.  You're suggestions have been well taken.  I have
just finished implementing most of them in a new version.  "mmouse15.zip"
This file can be found on wuarchive.wustl.edu in the /pub/MSDOS_UPLOADS
directory.  It will also be at garbo.uwasa.fi in the /pc/programming
directory very soon.

Thanks.

-- 
Erik Kangas  
Physics/Math/CompE         "I lift up mine eyes unto the hills whence  
Phone 754-2316              cometh my strength"  Psalms                
Zeta Psi #304               Whereof we cannot speak, Thereof we must be silent.
Newsgroups: comp.graphics
From: sjm@miles.com (Scott Mark)
Subject: Re: Does Microsoft C support SuperVGA ?
Organization: Miles Inc., Diagnostics Division, Elkhart, IN
Date: Thu, 30 Jul 1992 18:07:37 GMT

In article <92210.131741U37956@uicvm.uic.edu> U37956@uicvm.uic.edu writes:
>
>   I am trying to draw graphics using Microsoft C 6.0  on SuperVGA
>mode and Super VGA monitor. One of the statements I used is
>
>     _setvideomode(X);
>

I know nothing about graphics supported by C 6.0, but C7 (the new C/C++)
compiler does support SVGA modes.

The good news is that lots of stuff is supported- all the VESA SVGA modes,
up to and including 1024x768; multiple pages (or buffers, if you like) so
you can do double buffering; automatic identification of graphic cards,
amount of video RAM, etc; and other nice features.

The bad news is that, for my card at least (Speedstar based on the TSENG 4000
with 1 Meg of RAM, which I thought was a pretty standard setup) the RAM-sizing
routine only sees 256K of RAM, so even C7 might not deliver everything you need.

Scott Mark
sjm@miles.com
Newsgroups: comp.graphics,comp.sys.ibm.pc,comp.sys.mac,comp.sys.amiga.graphics,bit.listserv.i-amiga
From: claes@sparc2.informatik.uni-essen.de (Heinz-Josef Claes)
Newsgroups: comp.graphics
Subject: Fonts to pbm
Keywords: font, pbm, x11, tex
Date: 30 Jul 92 10:18:01 GMT
Organization: University of Essen, Germany


Is there any possibility to convert x11 or tex-fonts to different bitmaps in
pbm-format?

Thanks in advance.

Heinz-Josef Claes
University of Essen
Germany
Email: claes@sparc2.ikb.uni-essen.de
   or: claes@sonne.informatik.uni-essen.de
Newsgroups: comp.graphics
From: elan@tasha.cheme.cornell.edu (Elan Feingold)
Subject: Hidden Surface Removal
Reply-To: elan@tasha.cheme.cornell.edu (Elan Feingold)
Organization: Cornell University
Date: Thu, 30 Jul 1992 14:27:42 GMT



I would appreciate if someone could either help me out or point me in the right
direction with this problem.

Basically, I have a bunch of polygons that don't intersect, sometimes in the 
form of a regular 2-D height field, and other times in other forms, like a 
sphere, cylinder, or other parametrically created objects.  I have implemented
a fast sort, but the problem is, scenes can be contructed for which a simple 
sort doesn't work.  The polygons are 4 sided.  Might it help to break them
into triangles?  Mathematica seems to do this and then plot them from, back 
to front, but this doesn't seem to work allways for me.  Example:



            --\ 
           / / \
          / /\--
         / / 
         --

I don't know if this picture is enlightening. :)  Basically I have a long
polygon and then a smaller one going behind it.  When the viewpoint is slightly
above and to the right of the scene, the longer polygon is plotted first,
messing up the scene.  Can anyone help as far as an algorithm is concerned?
Thanks loads in advance!

--
--------------------------------------------------------------------------|
|  Elan Feingold       |  Chevy Chase after being asked by a Howard Stern |
|  CS/EE Depts.        |  interviewer whether he still wore a toupee:     |
|  Cornell University  |  "Ask him [Stern] if he wants me to put his      |
|  Ithaca NY 14850     |   dentist in a higher tax bracket."              |
--------------------------------------------------------------------------
From: rpatil@nmsu.edu (Raj Patil)
Newsgroups: comp.graphics
Subject: Object Classification..
Date: 27 Jul 92 20:38:08 GMT
Distribution: comp.graphics
Organization: Computing Research Lab


Hi:

I am faced with following problem to be solved using image processing
techniques:

We are trying to classify different non-lint particles in a cotton sample
using imaging techniques.

Cotton sample after ginning contains different kind of trash material on the
basic of which cotton is graded for it quality. The trash (non-lint particles)
are of type pieces of leaf, bark, sticks, pepper (fine pieces of leaf), 
cotton seed coat fragments, etc. We are looking at different features
of these particles, area, perimeter, shape factor, eccentricity, moments etc.
Using these features we have achieved fairly good classification. We also 
used clustering approaches, Neural nets etc. 

Those who have seen some of these non-lint particles, is these anything else
that we need to consider as feature, in order to get a better 
classification ? Like most of real life problems, one major problem is 
of overlapping clusters of these trash types and increasing feature 
space may improve the classification.

Any suggestions and ideas are appreciated.

Regards

raj
USDA, ARS