HDTenEightyP/NetNews huggingface dataset:
From: mathews@kong.gsfc.nasa.gov (Jason Mathews - GSFC/514)
Subject: Re: Zooming
Summary: Image Processing reference with TIFF images in C 
Keywords: zooming,downscaling,interpolation
Organization: Goddard Space Flight Center
Date: Fri, 6 Nov 92 19:32:33 GMT

In article <1d3ji1INN759@cs.tut.fi> you write:
>
>I would like to know present state-of-the-art in algorithms for
>high-quality image z o o m i n g, especially for scaling-down, but
>also for scaling up, by any factor. That is, how to diminish/enlarge an
>image, with minimum perceptual quality loss, from (x1,y1) to (x2,y2) pixels?
>This seems to be easy using photographic enlarger, but not so easy
>in general with digital images. On the other hand, such things are 
>running on computer displays.
>
>Any info on (clever) algorithms, current implementations, references
>and review material will be appreciated.
>
>
>Irek Defee

There's been a series of image processing articles carried by the C
Users Journal starting from March 1991.  The current issue Nov.'92 covers image 
operations such as zooming, scaling, rotation, and others.  The article includes
complete C source code for manipulating TIFF images, but the alogrithms
can easily be converted to other formats.

Jason
-- 

-------------------------------------------------------------------------------
Jason Mathews			|  National Space Science Data Center (NSSDC)
NASA/Goddard Space Flight Center|  Internet: mathews@nssdcs.gsfc.nasa.gov
Greenbelt, MD 20771-0001	|	     mathews@kong.gsfc.nasa.gov
--------------------------------+ CPU time flies when you're having fun.
Newsgroups: sci.image.processing
From: wayne@helix.nih.gov (Wayne Rasband)
Subject: Re: Wanted - Formats of image files
Followup-To: sci.image.processing
Organization: NIH
Date: Tue, 10 Nov 1992 21:44:32 GMT

In article <1992Nov10.151517.20312@gserv1.dl.ac.uk>,
J.A.Clarke@daresbury.ac.uk (J.A. Clarke) wrote:
> 
> Has anybody got a PC or Mac program that will convert a file of
> integers from a framegrabber (512 x 512) into a recognised image
> format such as GIF or PICT etc. Thanks
> 

NIH Image for the Mac will convert raw 8 or 16-bit data files into either
PICT or TIFF format. The latest version(1.47) is available by anonymous ftp
from zippy.nimh.nih.gov, in the directory /pub/image.

--wayne
Newsgroups: sci.image.processing
From: andy@osea.demon.co.uk (Andrew Haveland-Robinson)
Subject: Re:  Negative on Slide
Distribution: world
Organization: Haveland-Robinson Associates
X-Mailer: Simple NEWS 1.90 (ka9q DIS 1.18)
Date: Fri, 13 Nov 1992 08:05:00 +0000


In article <1992Nov11.060624.28419@philabs.philips.com> hyw@philabs.philips.com writes:

>Problem: I have a bunch of 24 bit color images that I want to
>output onto film via a film recorder. Most service bureaus only
>output onto slides and will charge alot to output on negative
>films. What I really want is to record the images onto negatives
>so that I can print them myself at home. (I am not interested in
>getting into printing from slides...) 
>
>Question: Have anyone tried inverting an image using an image
>editing program like Photoshop and then output it onto a slide
>so that a negative image can be obtained on film. Is it possible
>to get decent color balance printing a negative image recorded on
>a slide film? Comments? 
>
>Thanks
>
>Regards
>Huay-Yong

This is a question I would also like answering, as I use a friendly bureau
for 35mm slides, and have Photoshop etc. and would like to produce some
large posters of the raytraced images I create for the portfolio.

Practically, I don't see any reason why not - if the output is linear in
the positive then it ought to be linear in the negative!

Andy.

+-----------------------------------------------------------------------+
| Haveland-Robinson Associates   | Email: andy@osea.demon.co.uk         |
| 54 Greenfield Road, London     |        ahaveland@cix.compulink.co.uk |
| N15 5EP England. 081-800 1708  | Also:  0621-88756 081-802 4502       |
+-----------------------------------------------------------------------+
>>>> Those that can, use applications. Those that can't, write them! <<<<
> Some dream of doing great things, while others stay awake and do them <
Newsgroups: sci.image.processing
From: mathews@kong.gsfc.nasa.gov (Jason Mathews - GSFC/514)
Subject: Image processing - The C Users Journal (article series)
Summary: Information to receive journal
Keywords: Images, TIFF, CUJ 
Organization: Goddard Space Flight Center
Date: Fri, 13 Nov 92 20:43:57 GMT

Due to several inquiries regarding my reference to C Users Journal
for Image processing algorithms, I have summed up all the information
for anyone who is interested to look at these articles.

These articles are primarily for manipulating TIFF format images, but
the algorithms/concepts may be general enough to apply to other formats
without too much modification.

The C Users Journal is one of the leading international resources for
C programmers  Subscription is $29.95 US, $37 CAN, and $46 overseas for a
full year.

I personally have not had the time to examine this material close enough,
but it appears to be a very good reference.

Magazine Code Disks(Mo: Yr:)	$5
Magazine Code Disks - 1990(v.8)	$20
Magazine Code Disks - 1989(v.7)	$20

Back issues: $7.50, $11 overseas

The C Users Journal, 2601 Iowa St., Lawrence, KS 66046, (913) 841-1631.

Some articles from the image processing series include the following:

Ray tracing for Rendering 2-D Cross-sections of 3-D objects, Aug. 1992
Part 1: Reading the Tag Image File Format (TIFF), Mar. 1991
Part 2: Displaying images and Printing numbers, May 1991
Part 3: Displaying and printing Images using Halftoning, June 1991
Part 4: Histograms and Histogram Equalization, Aug. 1991
Part 5: Writing Images to files and Basic Edge Detection, Nov. 1991
Part 6: Advanced Edge Detection, Jan. 1992
Part 7: Spatial Frequency Filtering, Oct. 1992
Part 8: Image Operations (Merging, Rotation, Zooming, ...), Nov. 1992
From: phantom@casbah.acns.nwu.edu (James Choi)
Newsgroups: sci.image.processing
Subject: 3D reconstruction from redundant views
Date: 12 Nov 92 23:59:31 GMT
Organization: Northwestern University, Evanston Illinois.


I am interested in finding any reference or papers on multiple view
(potentially 100s of views) 3D reconstruction.  This idea grew out of my CT
image reconstruction experience.  

"Why limit ourselves to stereo views when we can have many more" is the
basic driving idea here.

Please post the reply or send to phantom@nwu.edu.  Thank you in advance.

James Choi
From: cc738@cleveland.Freenet.Edu (Teik-Meng Lee)
Newsgroups: sci.image.processing
Subject: Holograms in Pattern Recognition!
Date: 9 Nov 1992 00:29:13 GMT
Organization: Case Western Reserve University, Cleveland, Ohio (USA)
NNTP-Posting-Host: hela.ins.cwru.edu


Dear readers; 

    I have two questions that I hope you will be able to help me with. 
I am currently doing some optical pattern recognition using VanderLugt
Filters(Fourier holograms).  I would like to ask those readers who have
done this kind of work the typical Horner efficiencies yield in their 

optical correlator.  

The second question has to do with holographic plates.  In my work, I 
use either the Kodak 649F plates or the Agfa-Gevaert 8E75HD-7 plates. 
I have found that the Agfa plates yield much better efficiencies. 
Could you please tell me why this could be so and what the repective 
diffraction efficiencies of both thse plates? 

Thank you very much. 

Teik 
Newsgroups: sci.image.processing
From: manand@ntuix.ntu.ac.sg (Anand Asundi)
Subject: Re: Wanted - Formats of image files
Organization: Nanyang Technological University - Singapore
X-Newsreader: TIN [version 1.1 PL6]
Date: Wed, 11 Nov 1992 03:11:34 GMT


  Alchemy and pbmplus among others allow you to load frame grabber format images and then convert it to any other format including GIFs
Newsgroups: sci.image.processing
From: malaviya@borneo.gmd.de (Malaviya)
Subject: Re: CAIP'93
Reply-To: `whoami`@borneo.gmd.de
Organization: GMD, German National Research Center for Computer Science
Date: Thu, 5 Nov 1992 08:58:40 GMT

Hi,

>Has anyone any info on the subject above, ie.

>	The 5th International Conf on Computer Analysis of Images and 
>	Patterns (CAIP '93).

Just write to the following e-mail:

	Prof. D. Chetverilkov
	h1180cse@ella.hu

Anyways last date for sending abstracts is 15.1.93

>which is in Budapest, Sept 1993. I'm looking for call for papers info really,
>since I seem to have lost the glossy brochure I had ...

>Cheers,

>	Shaun.


gruss
 
Ashutosh


````````````````````````````````````````````````````````````````````````````````
``````` 
Ashutosh Malaviya			     |   ~~	email: malaviya@borneo.gmd.de   
Fuzzy working group, I5.EIA                  |   ~~	FAX: +49-2241-14-2342
German National Center for Computer Science  |   ~~     Tel: +49-2241-14-2751	  
GMD, Postfach 1316                           |   
W-5205 St. Augustin 1                        | 
GERMANY                                 
````````````````````````````````````````````````````````````````````````````````
``````



Newsgroups: sci.image.processing
From: qiang@cubmol.bio.columbia.edu (Qiang Zheng)
Subject: >8 bits image grabber?
Organization: Columbia University, Biological Sciences Dept.
Distribution: Columbia
Date: Thu, 12 Nov 1992 14:50:41 GMT

Hi, there.  Does anybody out there know whether there are commercial
image grabbers can handle more than 8 bits in grey lever.  I know  
there are 24 bits grabbers which are for color (8 bits for individual
basic color).  I'd like to know whether there are some grabbers can
handle 10 bits (1024 grey lever) or more, since I have a CCD camera
which generates 12 bits images. 

Thanks in advance.  Please e-mail me the answer.

James
From: leyfre@McRCIM.McGill.EDU (Frederic Leymarie)
Newsgroups: sci.image.processing
Subject: Re: Grad Schools and Image Processing...
Date: 5 Nov 92 16:32:30 GMT
Organization: McGill Research Centre for  Intelligent Machines


In article <1darn8INNq42@skat.usc.edu>, zakauddi@usc.edu
 (Awais Zakauddin) writes:
|> Could someone give me of names of schools with strong research activities
|> and reputations in Image Processing ? 
|> More specifically, in the areas of Low-Level Image Processing, 
|> Image Analysis, Morphological Image Processing and Pattern Recognition 
|> such as Face Recognition. 
|> I'm looking for somewhere to go for my Phd.

Here is a short list of "good" places to go to (biased, of course! ;-)

McGill Research Center for Intelligent Machines
McGill University, Montreal, Canada
Profs: S. Zucker (low-level vision), M. Levine & F. Ferrie (image analysis)

Toronto University, Canada
Profs: G. Hinton (low-level vision, neural nets),
       J. Tsotos & D. Terzopoulos (image analysis)

MIT: AI Lab + Media Lab
Boston, USA
Profs: A. Pentland + B. Horn (image analysis),
       E. Adelson + T. Poggio (low-level vision),

Harvard, Boston, USA
Profs: P. Maragos (morpho. math), D. Mumford (image analysis - maths)
       P. Cavanagh (perception)

CMM, Ecole des Mines, France
Prof: J. Serra (morpho. math)

Linkoping University, Sweden
Profs: G. Granlund (image analysis), P. Danielsson (patt. rec., image proc.)

Utrecht Universitu, the Netherlands
Prof: J. Koenderink (low level vision)

--
-- 
Frederic Leymarie -- leyfre@mcrcim.mcgill.edu
McGill University, Electrical Eng. Dept., McRCIM,    |	Tel.: (514) 398-8236
3480 University St., Montreal, QC, CANADA, H3A 2A7.  |	FAX:  (514) 398-7348
Newsgroups: sci.image.processing,rec.photo
From: lds@ccrl.nj.nec.com (Duan-Shin Lee)
Subject: Nikon F3 for sale
Organization: C&C Research Labs, NEC USA, Princeton, N.J.
Distribution: na
Date: Thu, 12 Nov 92 16:27:07 GMT

Hi,
I have a Nikon F3HP black body for sale. It has the following 
main features:
(1) 1/2000 to 8 sec shutter speed
(2) Aperture priority
(3) DOF preview
(4) mirrow lockup
(5) a mechanical shutter speed for backup
(6) TTL flash with SB16A and SB17
The camera is about 16 months old and is in perfect condition.
Actually, it is rarely used and does not have a scratch on it.
I am asking $640, or reasonable offer.  I will pay for the shipping.
The original box, manual and USA warranty card will go with the camera.

If you are interested in it, please email or call (609)951-2456.
Thanks.

-- 
Duan-Shin Lee
C & C Research Lab, NEC USA
Tel:(609)951-2456
lds@ccrl.nj.nec.com
Newsgroups: sci.image.processing,rec.video,rec.games.video.archadde,rec.video.production,rec.games.video,alt.sci.image-facility
From: stuart@tellabs.com (Rick Stuart)
Subject: Where to get Virtual Reality equipment ??? (Who makes the stuff?)
Keywords: virtual reality manufacture helmet three 3 dimensional
Organization: Tellabs, Lisle, IL
Distribution: usa
Date: Fri, 6 Nov 1992 00:01:36 GMT


I don't frequent any of these news groups, so sorry if this question
appears a little out of line or has been discussed to no end .  Anyway,
does anyone know of a manufacture of Virtual Reality Equipment?  I
don't think the camera equipment will be difficult to find.  (Sony
makes this cigar size camera called the XC-999, for about $1400 big
ones.  I have been told the guys at Argon National Labs really like
it!)  What I'm looking for is the the helmet.  Some sort of device which
contains two monitors and optics so you won't go cross eyed looking at 
images inches from your eyes.  The end result should be a three
dimensional image presented to the wearer of the helmet.  Again, I'm
looking for a Virtual Reality vision system, specificly the helmet.
If anyone knows of a manufacture, send me some E-mail.  Also, if anyone
knows of alternative ways of viewing virtual reality which allows more
than one person access to the same image, I'd like to read your
comments as well.  I should add I am only interested with the image at
this time.  The added cost of helmet position sensors is something I am
trying to avoid.

					...thanks
					   Rick Stuart
					   708 512-7875
					   Lisle, IL
Newsgroups: sci.image.processing
From: mdfpph@ultb.isc.rit.edu (M.D. Fairchild)
Subject: Re:  Negative on Slide
Originator: dpmsys@ultb
Organization: Rochester Institute of Technology
Date: Fri, 13 Nov 1992 16:22:48 GMT

In article <721655374snz@osea.demon.co.uk> andy@osea.demon.co.uk (Andrew Haveland-Robinson) writes:
>
>In article <1992Nov11.060624.28419@philabs.philips.com> hyw@philabs.philips.com writes:
>
>>Problem: I have a bunch of 24 bit color images that I want to
>>output onto film via a film recorder. Most service bureaus only
>>output onto slides and will charge alot to output on negative
>>films. What I really want is to record the images onto negatives
>>so that I can print them myself at home. (I am not interested in
>>getting into printing from slides...) 
>>
>>Question: Have anyone tried inverting an image using an image
>>editing program like Photoshop and then output it onto a slide
>>so that a negative image can be obtained on film. Is it possible
>>to get decent color balance printing a negative image recorded on
>>a slide film? Comments? 
>>
>>Thanks
>>
>>Regards
>>Huay-Yong
>
>This is a question I would also like answering, as I use a friendly bureau
>for 35mm slides, and have Photoshop etc. and would like to produce some
>large posters of the raytraced images I create for the portfolio.
>
>Practically, I don't see any reason why not - if the output is linear in
>the positive then it ought to be linear in the negative!
>
>Andy.
>
It's not so simple.  The only reliable way is to use negative film in th
eimage recorder.  See the post in rec.photo for meore details.

-Mark
From: ma@informatik.uni-kiel.dbp.de (Martin Ameskamp)
Newsgroups: sci.image.processing
Subject: Re: A remote sensing newsgroup?
Date: 5 Nov 1992 13:34:49 GMT
Organization: Department of Computer Science, University of Kiel, Germany
NNTP-Posting-Host: capella.informatik.uni-kiel.dbp.de

In <1992Nov4.160507.10306@udel.edu> chettri@huey.udel.edu (Expressio Veri) writes:

>In article <Bx4ynB.BCI@newcastle.ac.uk> D.J.Hutt@newcastle.ac.uk (D.J. Hutt) writes:
>>
	[... discussion about satellite images etc. ...]

	I would recommend that any one who is interested in remote
	sensing, satellite images, application of RS to geo.. meteoro.. etc.
	(and doesn't alraedy know this) have a look at
	comp.infosystems.gis
	Sorry I haven't got the charter of c.i.g handy, but things like 
	this frequently crop up there (whether they belong there or not
	might be a matter for discussion ...)

	Martin
--
Martin Ameskamp, Kiel University, Germany
Fax: ++49 431 8804054, Voice: ++49 431 8804474, 
email: ma@informatik.uni-kiel.dbp.de

Newsgroups: com.sys.sgi,comp.sys.graphics,sci.image.processing
From: sunita@research.nj.nec.com (Sunita Hingorani)
Subject: Raytracer with ground truth
Originator: sunita@vision
Organization: NEC Research Institute
Date: Mon, 9 Nov 92 16:28:14 GMT

Hi,
  I want to create stereo images where the ground truth is known, so 
that I can verify stereo algorithms.

  Does anybody know of a raytracer or any other tool that will let me
create synthetic scenes and also put out the depth values at each point
of the scene.

Thanks in advance


        Sunita  L. Hingorani

        NEC Research Institute
        4 Independence Way
        Princeton
        NJ 08540

phone:  609 951 2729
  fax:  609 951 2482
email:  sunita@research.nj.nec.com (Inet)
From: oj@miki.pictel.com (Oliver Jones)
Subject: Re: Looking for MPEG applications
Organization: PictureTel Corporation
Date: Thu, 12 Nov 1992 15:38:34 GMT

In article <1992Nov10.143142.1047@miki.pictel.com> I wrote:

>To get a look at what MPEG can do, run down to your local
>Sears or expensive-gadget store and get a demo of the CD/I (Compact
>Disc Interactive) device put out by Phillips.  Some of the motion
>pictures in CD/I use 1.15 megabit-per-second MPEG.

I blew it.  CD/I doesn't do MPEG yet.  Sorry for the confusion, and
thanks to somebody at Phillips North America for straightening me out.

CD/I is still worth the demo.

Oliver Jones
Xref: sparky sci.image.processing:1131 comp.compression:3788
From: mou@nova1.stanford.edu (Alex Mou)
Newsgroups: sci.image.processing,comp.compression
Subject: half tone removal?
Date: 10 Nov 1992 07:08:45 GMT
Organization: Stanford University
NNTP-Posting-Host: nova1.stanford.edu

I am looking for efficient algorithms for halftone removal. One way that
I know is doing FFT first to find the halftoing frequency and then
lowpass filter the image. However, FFT is somewhat difficult and costly
for hardware implementation.

Is there any spatial domain method for the halftone frequency detection?
All advices and pointers are welcome and appreciated.

Please email your answer to me if it's convenient to you. Thanks.

Alex
From: adorno@av.crl.sony.co.jp (Adorno)
Newsgroups: sci.image.processing
Subject: Interpolation from non-uniform spaced samples
Date: 13 Nov 92 03:14:56 GMT
Organization: Sony Co., Tokyo, Japan

Hello!

I'm interested in interpolation of nonuniformly spaced samples.
I noticed there has been discussion on the newsnet for
reconstruction from irregularly grid.  However, I'm more
interested in interpolation from regularly spaced, but
non-uniform sampling. Would any of the references provided
earlier be appropriate for regular samples?

I'm grateful for any and all related references, ideas, simulation
programs, etc.

Thanks,

Noel

---------------------------------------------------------------------------
Noel Adorno

Hashimoto Signal Processing Laboratory
Corporate Research Laboratories
Sony Corporation
6-7-35, Kitashinagawa
Shinagawa-ku, Tokyo, 141
Japan

                                Phone       03 ( 3448 ) 5604
                                Fax         03 ( 3448 ) 5611
                                E-mail      adorno@av.crl.sony.co.jp
Newsgroups: sci.image.processing,rec.photo
From: jle@cfm.brown.edu (Jon Elion)
Subject: Re: Negative on Slide
Organization: Brown University / Cardiac Image Processing Lab
Date: Thu, 12 Nov 1992 17:17:08 GMT

hyw@philabs.philips.com (Huay-Yong Wang) writes:
>Problem: I have a bunch of 24 bit color images that I want to
>output onto film via a film recorder. Most service bureaus only
>output onto slides and will charge alot to output on negative
>films. What I really want is to record the images onto negatives
>so that I can print them myself at home. (I am not interested in
>getting into printing from slides...) 

>Question: Have anyone tried inverting an image using an image
>editing program like Photoshop and then output it onto a slide
>so that a negative image can be obtained on film. Is it possible
>to get decent color balance printing a negative image recorded on
>a slide film? Comments? 

Your best bet is to call around to other service bureaus!  There
is no reason to charge more for negatives, except possible the
handling of changing the film in the camera.  I have done this
rather routinely on a LaserGraphics LFR.  Ektachrome-100 for
slides, Kodacolor-100 for prints.

Inverting the image is not enough.  Look at color negative film --
there is a dense orange "mask" you would have to add electronically.
This is there to compensate for color response of the paper.

Suggestions (in order of preference):

(1) Find a service bureau that will shoot the Kodacolor-100 film.
(2) Print directly slides-to-paper (processes are available, I
    don't know if suitable for home darkroom -- I have had it done
    for me frequently for printing slides).
(3) Figure out how much orange to add to the color balance in PhotoShop.
    I would create a known color patter, invert, add various degrees
    of color balance, and add text to each example to say what you
    have done.  Spend the time/money on one test roll and you are
    set from now on.


Newsgroups: sci.image.processing,rec.video,rec.games.video.archadde,rec.video.production,rec.games.video,alt.sci.image-facility
From: bishop@rutile.enet.dec.com (Lewis Bishop)
Subject: Re: Where to get Virtual Reality equipment ??? (Who makes the stuff?)
Keywords: virtual reality manufacture helmet three 3 dimensional
Reply-To: bishop@rutile.enet.dec.com (Lewis Bishop)
Organization: Digital Equipment Corporation
Distribution: usa
Date: Tue, 10 Nov 1992 13:50:33 GMT


I have seen an advert today for these people below, but it sounds of if they
rent whole arcade systems... might be worth giving a call...


					Lewis.



VIRTUAL REALITY SYSTEMS

SEEING IS BELIEVING

ZONA VIRTUAL REALITY is the gateway to cyberspace-360 degree of computer
effected scapes. Transportable systems showcasing leading edge technology,
taking you to the new world.

Leasing Sales Rental

Bedford Chambers The Piazza
Covent Garden London WC2E 8HA England 

Telephone 071-836-4052        FAX 071-379-4793
From: ernie@tartarus.uwa.edu.au (Ernest Ong)
Newsgroups: sci.image.processing
Subject: OCR Info. Please!!
Date: 9 Nov 1992 03:44:49 GMT
Organization: The University of Western Australia
NNTP-Posting-Host: tartarus.uwa.edu.au
X-Newsreader: Tin 1.1 PL5


Anybody know where I can get any OCR (Optical Character Recognition)
Information (Articles, Book, Code etc...), as I want to do a school project
on the subject.

Thanks,
Ern at ernie@tartarus.uwa.edu.au


Newsgroups: sci.image.processing