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.