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- XV -- Extracts from Several Informational Files
-
-
- XV License Info
- ===============
- Thank you for acquiring a copy of XV. I hope you enjoy it.
-
- If you like the program and decide to use it, *please* send me a short
- email message to that effect. Be sure to mention the full name of your
- organization, and where you're located. When our sponsors ask us 'what
- have you been doing', it always looks good if we can come up with a nice
- long list of folks who are using code developed in the GRASP Lab.
-
- XV is shareware for PERSONAL USE only. You may use XV for your own
- amusement, and if you find it nifty, useful, generally cool, or of
- some value to you, your non-deductable donation would be greatly
- appreciated. $25 is the suggested donation, though, of course,
- larger donations are quite welcome. Folks who donate $25 or more
- can receive a printed, bound copy of the XV manual for no extra
- charge. If you want one, just ask. BE SURE TO SPECIFY THE VERSION
- OF XV THAT YOU ARE USING!
-
- Commercial, government, and institutional users MUST register their
- copies of XV, for the exceedingly REASONABLE price of just $25 per
- workstation/X terminal. Site licenses are available for those who
- wish to run XV on a large number of machines. Contact the author
- for more details.
-
- U.S. Funds only, please. Checks should be made payable to 'John Bradley'.
-
-
- Copyright Notice
- ================
- XV is Copyright 1989, 1990, 1991, 1992, 1993 by John Bradley
-
- Permission to use, copy, and distribute XV in its entirety, for
- non-commercial purposes, is hereby granted without fee, provided that
- this license information and copyright notice appear in all copies.
-
- If you redistribute XV, the *entire* contents of this distribution must be
- distributed, including the README, and INSTALL files, the sources, and the
- complete contents of the 'docs' directory.
-
- Note that distributing XV 'bundled' in with ANY product is considered
- to be a 'commercial purpose'.
-
- Also note that any copies of XV that are distributed MUST be built
- and/or configured to be in their 'unregistered copy' mode, so that it
- is made obvious to the user that XV is shareware, and that they should
- consider donating, or at least reading this License Info.
-
- The software may be modified for your own purposes, but modified
- versions may NOT be distributed without prior consent of the author.
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the author be held liable for any damages
- arising from the use of this software.
-
- If you would like to do something with XV that this copyright
- prohibits (such as distributing it with a commercial product,
- using portions of the source in some other program, etc.), please
- contact the author (preferably via email). Arrangements can
- probably be worked out.
-
-
- The author may be contacted via:
- US Mail: John Bradley
- 1053 Floyd Terrace
- Bryn Mawr, PA 19010
-
- Phone: (215) 898-8813
- EMail: bradley@cis.upenn.edu
-
-
-
- Availability
- ------------
-
- XV 2.10 is now available for anonymous ftp on the machines 'export.lcs.mit.edu'
- (in contrib/xv-2.10.tar.Z) and 'ftp.cis.upenn.edu' (in pub/xv-2.10.tar.Z).
-
- New Features:
- TIFF file i/o
- PDS/VICAR file input
- color gradient generation
- 'reload current image' on an external signal
- improved 'slow24' 24-to-8 color conversion algorithm
- incorporates the ppmquant 24-to-8 color conversion algorithm
- displays x,y coordinates of handles in the 'graph' windows
- improved GIF89 parsing
- faster dithering for 1-bit B/W X displays
-
- And of course, there's several new command line options, X resources, and more
- bug fixes than I'd care to admit :-)
-
- And no, it still doesn't display true 24-bit images on 24-bit displays. Get
- back to me next year on that subject...
-
-
- Brief Description
- ------------------
-
- XV is a program that displays image files in GIF87, GIF89, JPEG,
- PBM/PGM/PPM, TIFF, PDS/VICAR Sun Rasterfile, and X11 Bitmap formats.
- XV runs on nearly ALL X displays: 1, 2, 4, 6, 8, 16, 24, and 32-bit,
- color, greyscale, and black/white.
-
- XV displays one image at a time in an output window, or on the root
- window. You can arbitrarily stretch or compress the window, and the
- picture will be rescaled to fit. You can rotate the picture in
- 90-degree steps. You can flip the picture vertically and
- horizontally. You can repeatedly 'crop' a picture (define a
- rectangular 'region-of-interest' and 'throw away' the rest). You can
- magnify any portion of the picture by any amount, up to the maximum
- size of your screen.
-
- XV allows you click on the picture to determine pixel RGB values and
- x,y coordinates. You can perform arbitrary 'gamma correction' on the
- picture both in RGB space and HSV space. You can specify the maximum
- number of colors that XV should use, for some interesting visual
- effects. You can have the program produce a stippled version of the
- picture using black and white, or any other pair of colors.
-
- XV can write images in a variety of formats, with many of the
- modifications you may have made to the picture saved as well. You can
- use XV to do format conversion. XV will also automatically uncompress
- compress-ed files, as well as read files from stdin.
-
-
- John Bradley University of Pennsylvania - GRASP Lab
- bradley@cis.upenn.edu
-
- March 3, 1992
-
-
- XV Man Page
- -----------
-
- .TH xv l "Apr 23, 1993" "Rev: 3.00"
- .SH NAME
- \fBxv\fP \- interactive image display for the X Window System
- .SH SYNTAX
- \fBxv\fP \fI[options] [filename [filename...]]\fP
- .SH DESCRIPTION
- \fIxv\fP is an X11 program that displays images in the GIF, JPEG, TIFF,
- PBM, PGM, PPM, X11 bitmap, Utah Raster Toolkit RLE, PDS/VICAR, Sun Rasterfile,
- BMP, PCX, IRIS RGB, possibly PostScript, and PM formats on workstations and
- terminals running the X Window System, Version 11.
- .PP
- The documentation for XV is now distributed *only* as a PostScript file, as
- it has gotten considerably larger, and is no longer very well suited to
- the 'man' page format. Print a copy of the (100-ish page) manual found
- in 'docs/xvdocs.ps'. If you are unable to get the manual to print on your
- printer, contact the author for further information.
- .SH AUTHOR
- John Bradley - bradley@cis.upenn.edu
-
-
-