NAME

       webcollage - a collage of random images from the World Wide Web

SYNOPSIS

       webcollage  [--display  host:display.screen]  [--root]  [--window-id number] [--window-id id] [--verbose]
       [--timeout secs] [--delay secs] [--background bg] [--no-output] [--urls-only] [--imagemap  filename-base]
       [--size  WxH]  [--opacity  ratio]  [--filter  command]  [--filter2  command]  [--http-proxy  host[:port]]
       [--dictionary dictionary-file] [--directory dir] [--fps]

DESCRIPTION

       This screen saver creates collages out of random images from the World Wide Web.  It finds the images  by
       feeding  random words into various search engines, then pulling images (or sections of images) out of the
       pages returned.  One satisfied customer described it as "a nonstop pop culture brainbath".

       You can also see it in action at https://www.jwz.org/webcollage/

OPTIONS

       webcollage accepts the following options:

       --root or --window-id number
               Draw  on  the  specified  window.   Images  are   placed   on   the   root   window   using   the
               xscreensaver-getimage(6x) program.

       --verbose or --v
               Print  diagnostics to stderr.  Multiple -v switches increase the amount of output.  -v will print
               out the URLs of the images, and where they were placed; -vv will print out any warnings, and  all
               URLs being loaded; -vvv will print information on what URLs were rejected; and so on.

       --timeout seconds
               How  long  to  wait  for  a URL to complete before giving up on it and moving on to the next one.
               Default 30 seconds.

       --delay seconds
               How long to sleep between images.  Default 2  seconds.   (Remember  that  this  program  probably
               spends a lot of time waiting for the network.)

       --background color-or-file
               What  to  use  for  the  background  onto  which  images are pasted.  This may be a color name, a
               hexadecimal RGB specification in the form '#rrggbb', or the name of an image file.

       --size WxH
               Normally, the output image will be made to be the size of the screen (or  target  window).   This
               lets you specify the desired size.

       --opacity ratio
               How transparently to paste the images together, with 0.0 meaning "completely transparent" and 1.0
               meaning "opaque."  Default 0.85.  A value of around 0.3  will  produce  an  interestingly  blurry
               image after a while.

       --no-output
               If  this  option  is  specified,  then no composite output image will be generated.  This is only
               useful when used in conjunction with --verbose.

       --urls-only
               If this option is specified, then no composite output image will be generated: instead, a list of
               image URLs will be printed on stdout.

       --imagemap filename-base
               If  this option is specified, then instead of writing an image to the root window, two files will
               be created: "base.html" and "base.jpg".  The JPEG will be the collage; the HTML file will include
               that  image,  and  a  series of clickable rectangles linking the sub-images to the pages on which
               they were found, as seen on the web version of WebCollage at https://www.jwz.org/webcollage/

       --filter command
               Filter all source images through this command.  The command must take a PPM file  on  stdin,  and
               write a new PPM file to stdout.  One good choice for a filter would be:

                    webcollage -root -filter 'vidwhacker -stdin -stdout'

       --filter2 command
               Filter  the  composite image through this command.  The -filter option applies to the sub-images;
               the -filter2 applies to the final, full-screen image.

       --http-proxy host:port
               If you must go through a proxy to connect to the web, you can specify it  with  this  option,  or
               with the $http_proxy or $HTTP_PROXY environment variables.

       --dictionary file
               Webcollage  normally  looks  at  the system's default spell-check dictionary to generate words to
               feed into the search engines.  You can specify an alternate dictionary with this option.

               Note that by default, webcollage searches for images using several different methods, not all  of
               which  involve  dictionary words, so using a "topical" dictionary file will not, in itself, be as
               effective as you might be hoping.

       --directory dir
               Instead of searching the web for images, use the contents of the given directory.

       --fps   Display the current frame rate and CPU load (MacOS only).

ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
               to get the  name  of  a  resource  file  that  overrides  the  global  resources  stored  in  the
               RESOURCE_MANAGER property.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

       http_proxy or HTTP_PROXY
               to get the default HTTP proxy host and port.

FILES AND URLS

       /usr/dict/words,  /usr/share/lib/dict/words,  or  /usr/share/dict/words  to find the random words to feed
       into to various search fields, including Google, Bing, Flickr, Imgur and Tumblr.

BOOBIES

       The Internet being what it is, absolutely anything might show  up  in  the  collage  including  --  quite
       possibly -- pornography, or even nudity.

BUGS

       Animating GIFs are not supported: only the first frame will be used.

SEE ALSO

       X(1),   xscreensaver(1),  convert(1),  vidwhacker(6x),  dadadodo(1),  driftnet(1),  EtherPEG,  EtherPeek,
       https://www.jwz.org/webcollage/

COPYRIGHT

       Copyright © 1998-2022 by Jamie Zawinski.  Permission to use, copy,  modify,  distribute,  and  sell  this
       software  and  its  documentation  for any purpose is hereby granted without fee, provided that the above
       copyright notice appear in all copies and that both that copyright  notice  and  this  permission  notice
       appear  in  supporting documentation.  No representations are made about the suitability of this software
       for any purpose.  It is provided "as is" without express or implied warranty.

AUTHOR

       Jamie Zawinski <jwz@jwz.org>, 24-May-1998.