Image Processing Packages

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3 total messages Started by Sanjiev Chattopadhya Thu, 30 Jul 1992 19:02

#247

Author: Sanjiev Chattopadhya
Date: Thu, 30 Jul 1992 19:02

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There has been a lot of discussion about image processing
packages, and programs for converting between image formats.

My favorite public domain package is ALV - autonomous land
vehicle for suns written by Phil Everson.  I am surprised that
more people dont know about, and I have not seen it
mentioned on the sip.  It is an
excellent package that provides most of the things one 
wants in an image processing package and more (except a 
FFT routine).  It even provides the hooks to extensions
to the package.  It is available by anonymous ftp from
various sites - ask archie for the site nearest to you.
If you cannot ftp, send mail to the address below:

JANET:  everson@uk.ac.bris
ARPA:   everson@cs.bris.ac.uk
BITNET: everson%uk.ac.bris.cs@ukarl.bitnet

If you still have trouble, send me mail (but please try the above
first!).

For converting between image formats the easiest 
package to use by far is Jef Poskanzer (sp?).  The public domain
package is called pnm, or its older version is pbm. 
this a truly *complete* package for converting between
formats. The code is very portable.  It is also available
by anonymous ftp from various sites.  ask archie for details.
i think (i may be wrong), it may be on uunet.uu.net.

That is my $.02.

--Sanjiev Chattopadhya
schatt@gmuvax2.gmu.edu

Re: Image Processing Packages

#248

Author: Steve Lamont
Date: Thu, 30 Jul 1992 20:20

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In article <1992Jul30.190223.10772@gmuvax2.gmu.edu> schatt@gmuvax2.gmu.edu (Sanjiev Chattopadhya) writes:
>For converting between image formats the easiest 
>package to use by far is Jef Poskanzer (sp?).  The public domain
>package is called pnm, or its older version is pbm. 
>this a truly *complete* package for converting between
>formats. The code is very portable.  It is also available
>by anonymous ftp from various sites.  ask archie for details.
>i think (i may be wrong), it may be on uunet.uu.net.

A small correction:  the name of the package is pbmplus.  pnm is a
component of the package.

							spl
-- 
Steve Lamont, SciViGuy -- (619) 534-7968 -- spl@dim.ucsd.edu
UCSD Microscopy and Imaging Resource/UCSD Med School/La Jolla, CA 92093-0608
"Out of the ash/I rise with my red hair/And I eat men like air."
                        - Sylvia Plath, "Lady Lazarus"

Re: Image Processing Packages

#366

Author: Thomas Gahm
Date: Fri, 14 Aug 1992 08:38

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Here is the promised summary of all the email replys I got (and there were
quite a lot --- many thanks to all the contributors !) on my request
for information about a highly sensitive colour video camera for fluorescence
microscopy.

The whole information can be boiled down to three camera brands:

   - Optronics:  non-cooled camera
                 1 Chip RGB video camera with filter mosaic
                 variable integration time (>5sec)
                 SONY Hyperhad Chip
                 ~ US$ 7.500
                 sensitivity >0.5 lux
                 US Optronics distributer

                 (I am going to have this camera tested, so if anybody is
                  interested in the results, please let me know)


   - SONY:       DXC-930P
                 3 Chip RGB video camera 
                 752(H) x 582 (V)
                 variable integration time (<8sec)
                 ~ DM 10.000 (--> ca US$ 7.000)
                 SONY distributer
                 
                 I was assured by people experimenting with this camera
                 that it could be sensitive enough for fluorescence applications.
                 As the camera head is very small it should also be possible
                 to fit a Peltier cooling device enhancing the sensitivity in
                 that way.


   - Kappa:      CF 15/2
                 1 Chip RGB video camera with filter mosaic
                 460 (H) x 582 (V)
                 Peltier-cooled system
                 sensitivity ~ 0.5 lux
                 ~ DM 17.700 (--> ca US$ 12.000)
                 Tel: 05592 303
                 Fax: 05592 1726, Germany 


There were also a lot of suggestions about high sensitive black and white video
cameras (e.g. Photometrics, Hamamatsu, Kappa, ...). Nearly every company 
producing video cameras has nowadays also a high sensitive device by either
cooling it (Peltier or nitrogen cooling) or using high integration times or
both or adding an intensifier module.  The special interest of this enquiry, 
however, was on colour cameras. 
 

Thomas           

______________________________________________________________________________________

Dr. Thomas Gahm                           Tel.: 0049 511 762 5320
                                          Fax.: 0049 511 762 5333

                                          email: gahm@tnt.uni-hannover.de

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