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VISION-LIST Digest 1990 03 08
Vision-List Digest Thu Mar 08 14:32:57 PDT 90
- Send submissions to Vision-List@ADS.COM
- Send requests for list membership to Vision-List-Request@ADS.COM
Today's Topics:
1989 Rosenfeld bibliography on Computer Vision etc. now available
Road Detection Algorithms
One-to-many matching
Software for ranslating between image file formats [condensed]
translating between file formats
Definition of Vision List, ftp access, and admin. reiteration
Welcome to Vision-List!
----------------------------------------------------------------------
Date: Thu, 8 Mar 90 14:28:30 PST
From: Philip Kahn <vision-list-request@ads.com>
Subject: 1989 Rosenfeld bibliography on Computer Vision etc. now available
I posted the 1989 Rosenfeld bibliography on Computer Vision, etc.
in the previous Vision List. Since many mailers place a limit on
message size, not everyone may receive it. (It is ~.25MB.)
The 1989 Rosenfeld bibliography is also available via anonymous ftp
(see the last message in this List which describes how to ftp).
The 1984-1989 Rosenfeld bibliographies are thus electronically available.
This ftp account is the only current way these bibliographies are
being distibuted.
Many thanks to Dr. Azriel Rosenfeld of the University of Maryland for
making his bibliography electronically available to us.
phil...
------------------------------
Date: Wed, 7 Mar 90 14:22:03 EST
From: agr@cs.wayne.edu (Arindam G. Ray)
Subject: Road Detection Algorithms
I am trying to locate the following paaper by M.A. Fishler and
H.C. Wolf :
" A General Approach to Machine Perception of Linear structure in
Image data"
I will appreciate very much if someone can give me the name of the
journal or conference where this was published.
thanking in advance
Arindam Guptaray
e-mail: agr@cs.wayne.edu
------------------------------
Date: 7 Mar 1990 12:32:39-GMT
From: aa538 <aa538@city.ac.uk>
Subject: One-to-many matching
Could anyone give me some references for one-to-many matching.
In particular, have relaxation labelling or maximal cliques been
used for one-to-many matching?
Paul Rosin
------------------------------
Date: 7 Mar 90 16:43:49 GMT
From: Philip Kahn <vision@deimos.ads.com>
Subject: Software for ranslating between image file formats
In article <9003070500.AA27858@deimos.ads.com> Vision-List@ADS.COM writes:
>From: YUHUA LUO <dmilyu0@PS.UIB.ES>
>Subject: RasterOps Image Formats
>
>We have a Macintosh RasterOps to capture and display images. We like
>to convert the image format from it to Sun's. It uses two different
>formats of image : PICT and TIFF. Does anyone know the format of these
>two or where to get the information about them ?
barad@bourbon.ee.tulane.edu (Herb Barad), johnston@csam.lbl.gov (Bill
Johnston [advdev]), and celit!billd@celerity.fps.com (Bill Davidson)
suggest looking at the weekly posting in comp.graphics which lists
MANY good utilities for file format conversions.
The following is from the weekly comp.graphics posting:
This message is automatically posted once a week in an effort to cut
down on the repetitive junk in comp.graphics. It was last changed on
26jan90. If you have answers to other frequently asked questions that
you would like included in this posting, please send me mail. If you
don't want to see this posting every week, please add the subject line
to your kill file. Thank you.
Jef
Jef Poskanzer jef@well.sf.ca.us {ucbvax, apple, hplabs}!well!jef
"...Is this a trick question?"
Contents:
1) General references for graphics questions.
2) Drawing three-dimensional objects on a two-dimensional screen.
3) Quantizing 24 bit images down to 8 bits.
4) Converting color into grayscale.
5) Quantizing grayscale to black&white.
6) Rotating a raster image by an arbitrary angle.
7) Free image manipulation software.
8) Format documents for GIF, TIFF, IFF, BIFF, WHIFF, etc.
9) Converting between vector formats.
10) How to get Pixar films.
[ items 1-6 deleted ]
7) Free image manipulation software. There are a number of toolkits
for converting from one image format to another, doing simple image
manipulations such as size scaling, plus the above-mentioned 24 -> 8,
color -> gray, gray -> b&w conversions. Here are pointers to some of
them:
PBMPLUS, by Jef Poskanzer. Comprehensive format conversion and image
manipulation package. The latest version is always available via
anonymous FTP as expo.lcs.mit.edu:contrib/pbmplus.tar.Z and
ftp.ee.lbl.gov:pbmplus.tar.Z. The version of 22nov89 (which currently
is still the latest version, except for the one official patch so far)
was posted to comp.sources.misc, and is therefore accessible via mail
to one of the archive servers. This version is also available in the
X.V11R4 release tape. A mailing list is available for users and
developers - write to pbm-request@helios.ee.lbl.gov.
IM Raster Toolkit, by Alan Paeth (awpaeth@watcgl.uwaterloo.ca).
Provides a portable and efficient format and related toolkit. The
format is versatile in supporting pixels of arbitrary channels,
components, and bit precisions while allowing compression and machine
byte-order independence. The kit contains more than 50 tools with
extensive support of image manipulation, digital halftoning and format
conversion. Previously distributed on tape c/o the University of
Waterloo, an FTP version will appear in 1/90 (stay tuned).
Utah RLE Toolkit. Conversion and manipulation package, similar to
PBMPLUS. Available via FTP as cs.utah.edu:pub/toolkit-2.0.tar.Z and
ucsd.edu:graphics/utah-raster-toolkit.tar.Z.
Fuzzy Pixmap Manipulation, by Michael Mauldin <mlm@nl.cs.cmu.edu>.
Conversion and manipulation package, similar to PBMPLUS. Available via
FTP as nl.cs.cmu.edu:/usr/mlm/ftp/fbm.tar.Z and ucsd.edu:graphics/
fbm.tar.Z, and also in your nearest comp.sources.unix archive.
Img-whatnot, by Paul Raveling <raveling@venera.isi.edu>. Reads and
writes its own image format, displays on an X.V11 screen, and does some
image manipulations. Available via FTP as expo.lcs.mit.edu:contrib/
Img.tar.Z, and venera.isi.edu:pub/Img.tar.Z along with a large
collection of color images.
Xim, by Philip R. Thompson. Reads and writes its own image format,
displays on an X.V11 screen, and does some image manipulations.
Available via FTP as expo.lcs.mit.edu:contrib/xim3c.tar.Z.
xloadimage, by Jim Frost <madd@std.com>. Reads in images in various
formats and displays them on an X.V11 screen. Available via FTP as
expo.lcs.mit.edu:contrib/xloadimage.tar.Z, and in your nearest
comp.sources.x archive.
TIFF Software, by Sam Leffler <sam@okeeffe.berkeley.edu>. Nice
portable library for reading and writing TIFF files, plus a few tools
for manipulating them and reading other formats. Available via FTP as
okeeffe.berkeley.edu:pub/tiff.tar.Z.
ALV, a Sun-specific image toolkit. Version 2.0.6 posted to
comp.sources.sun on 11dec89. Also available via email to
alv-users-request@cs.bris.ac.uk.
popi, an image manipulation language. Version 2.1 posted to
comp.sources.misc on 12dec89.
Don't forget to set binary mode when you FTP tar files. For you MILNET
folks who still don't have name servers, the IP addresses are:
expo.lcs.mit.edu 18.30.0.212
ftp.ee.lbl.gov 128.3.254.68
cs.utah.edu 128.110.4.21
NL.CS.CMU.EDU 128.2.222.56
venera.isi.edu 128.9.0.32
okeeffe.berkeley.edu 128.32.130.3
=============================================================
[from Jef's pbmplus documents - Bill J.]
------
Extended Portable Bitmap Toolkit
Distribution of 22nov89
Previous distribution 13sep89
Included are a number of programs for converting various image formats
to and from portable formats; plus some tools for manipulating the
portable formats.
PBM handles the following formats:
Sun icon file reading writing
Sun raster file reading writing
X10 and X11 bitmap file reading writing
MacPaint reading writing
CMU window manager format reading writing
MGR format reading writing
Group 3 FAX reading writing
X11 window dump file reading writing
X10 window dump file reading
Xerox doodle brushes reading
GEM .img format reading
PC paintbrush (.pcx) format reading
PICT reading
ASCII graphics writing
HP LaserJet format writing
GraphOn graphics writing
BBN BitGraph graphics writing
Printronix format writing
PGM handles the following formats:
TIFF reading
Usenix FaceSaver file reading
HIPS reading
FITS reading writing
PostScript "image" data reading
raw grayscale bytes reading
Encapsulated PostScript writing
PPM handles the following formats:
color Sun raster file reading writing
GIF reading writing
Amiga IFF ILBM reading writing
color X11 window dump file reading writing
color X10 window dump file reading
MTV ray-tracer output reading
QRT ray-tracer output reading
TrueVision Targa file reading
Img-whatnot file reading
color Encapsulated PostScript writing
************************************************************************
* Announcing the "Fuzzy PixMap" (or FBM) image manipulation library *
************************************************************************
Current version 0.96
Newly added: TIFF read support and Utah RLE support.
Philosophy
Each program can read any of the understood formats, and
can write any of the understood formats that make sense for
the image data.
Programs are designed around specific image operations (sizing,
scaling, retoning, halftoning, quantizing, etc.), rather than
simply converting from one format to another. For example,
converting a 4bit color GIF file to a 1bit Sun rasterfile
takes the following operations:
read GIF format
map color values to grayscale
adjust aspect ratio (1.2 --> 1.0)
scale image up to be visible (320x200 --> 640x480 or 1152x864)
optionally sharpen the image (edge enhancement)
optionally clean up "snow" in image (flip isolated pixels)
halftone (Blue noise, Floyd-Steinberg, Jarvis, Threshhold)
write Sun rasterfile format.
Inputs the following file formats
o Sun rasterfiles (1, 8, or 24 bits, color or grayscale)
o GIF files (1 to 8 bits, color or grayscale)
o Amiga IFF files (except HAM mode)
o PCX files
o PBM bitmaps
o Face files (CMU format for 1bit files by Bennet Yee)
o FBM files (my own format)
Outputs the following formats
o Sun rasterfiles
o FBM files
o GIF files (mapped color only)
o Amiga IFF files (except HAM mode)
o PBM (1bit files only)
o Face format (1bit files only)
With input converter for
o raw images (like Amiga Digi-View files)
o Targa By Ian MacPhedran
o PIC By Ian MacPhedran
o QRT By Butler Hines
With output converters for
o PostScript (1bit or 8bit grayscale files only)
o Diablo graphics (1bit files only)
o Targa By Ian MacPhedran
Operations
o Extract rectangle (optionally resizing and changing aspect ratio)
o Change density and contrast (color and grayscale)
o Rotate 90, 180, or 270 degrees
o Quantize 24 bit RGB images to 8..256 colors
Modified Heckbert median cut
o Halftone grayscale using
Ulichney's Blue Noise dithering
Floyd-Steinberg dithering
Jarvis's Constrained averaging
Threshholding
o Edge Sharpening by Digitial Laplacian (color or grayscale)
o Convert color to grayscale (or compute "gray" colormap
so grayscale images can be viewed on frame buffers)
o Compute histograms of grayscale images
o Sample 1bit images to convert to grayscale
Status
Beta test release, 0.9. "Use at your own risk, bug fixes not
guaranteed, be happy with minimal documentation." Bugs reported
so far have been fixed.
Availability
Anonymous FTP
Host: nl.cs.cmu.edu (128.2.222.56)
User: anonymous
Password: name@site
Directory: /usr/mlm/ftp/
Filename: fbm.tar.Z
Transfer: 'image'
Note: you must 'cd' to /usr/mlm/ftp directly, you cannot access
either /usr, or /usr/mlm alone. Don't forget to specify 'image'
format transfer.
------------------------------
Date: Thu, 8 Mar 90 14:29:16 PST
From: Vision-List moderator Phil Kahn <Vision-List-Request@ADS.COM>
Subject: Definition of Vision List, ftp access, and admin. reiteration
The host site for the ARPAnet Vision List is Vision-List@ADS.COM for
list contributions, Vision-List-Request@ADS.COM for undistributed
correspondence. As the moderator, I am interested in stimulating
exchanges on research topics of significance to the vision community.
Here are a few administrative details about the list.
Requests
--------
If you have problems sending messages to the list, questions about
technical details of the list distribution, or the like, send mail to
Vision-List-Request@ADS.COM and we will respond personally to your
query.
PLEASE DO NOT send your request to be added to/deleted from the list
to Vision-List@ADS.COM. If you do, it may be automatically
redistributed as an article and appear in thousands of mailboxes around
the world. Always send these requests to the -Request address.
Submissions & Release Format
----------------------------
To submit an article to Vision-List, simply send it to:
Vision-List@ADS.COM
Submissions to the list are currently being delivered in a single batch
mailing once a week, on weeks when there is something to send. Caution:
the list moderator does not always edit the incoming messages before
they are redistributed. During those weeks, everything operates
automatically, with the attendant advantages and pitfalls. (If you fall
into one of those pits, please send me mail at Vision-List-Request and
we'll do our best to fix things up.)
The following details may help you in formatting and choosing appropriate
titles for your list submissions. Within a single release of
Vision-List, the format consists of an initial identifying header, a
list of topics covered in that release, and then each message as
received in chronological order, separated by dashed lines. Most of the
header information is automatically removed from each submission at
release time. When the software is working correctly, only "Date:",
"From:", and "Subject:" appear.
Archives
--------
Backissues of the Vision List Digest are available via anonymous FTP.
For those of you without FTP connection, limited backissues may be obtained
by mailing your request to Vision-List-Request@ADS.COM .
To access the Digest backissues from anonymous FTP:
1) FTP to ADS.COM
2) Login name is ANONYMOUS
3) Once you're logged on, change directory (cd) to
pub/VISION-LIST-ARCHIVE
4) Backissues are in the subdirectory BACKISSUES. Each file
contains an archived issue, and the file name is the date and
time the issue was created.
5) Azriel Rosenfeld's Computer Vision bibliographies may be found in
ROSENFELD-BIBLIOGRAPHIES
** ** ** ** ** **
The list is intended to embrace discussion on a wide range of vision
topics, including physiological theory, computer vision, machine
vision and image processing algorithms, artificial intelligence and
neural network techniques applied to vision, industrial applications,
robotic eyes, implemented systems, ideas, profound thoughts --
anything related to vision and its automation is fair game. I hope
you enjoy Vision-List.
Phil Kahn, moderator
Vision-List-Request@ADS.COM
------------------------------
End of VISION-LIST
********************
