1webcollage(6x) XScreenSaver manual webcollage(6x)
2
6 webcollage - a collage of random images from the World Wide Web
7
9 webcollage [--display host:display.screen] [--root] [--window-id num‐
10 ber] [--window-id id] [--verbose] [--timeout secs] [--delay secs]
11 [--background bg] [--no-output] [--urls-only] [--imagemap filename-
12 base] [--size WxH] [--opacity ratio] [--filter command] [--filter2 com‐
13 mand] [--http-proxy host[:port]] [--dictionary dictionary-file] [--di‐
14 rectory dir] [--fps]
15
17 This screen saver creates collages out of random images from the World
18 Wide Web. It finds the images by feeding random words into various
19 search engines, then pulling images (or sections of images) out of the
20 pages returned. One satisfied customer described it as "a nonstop pop
21 culture brainbath".
22 You can also see it in action at https://www.jwz.org/webcollage/
24
26 webcollage accepts the following options:
27 --root or --window-id number
29 Draw on the specified window. Images are placed on the root
30 window using the xscreensaver-getimage(6x) program.
31 --verbose or --v
33 Print diagnostics to stderr. Multiple -v switches increase the
34 amount of output. -v will print out the URLs of the images,
35 and where they were placed; -vv will print out any warnings,
36 and all URLs being loaded; -vvv will print information on what
37 URLs were rejected; and so on.
38 --timeout seconds
40 How long to wait for a URL to complete before giving up on it
41 and moving on to the next one. Default 30 seconds.
42 --delay seconds
44 How long to sleep between images. Default 2 seconds. (Remem‐
45 ber that this program probably spends a lot of time waiting for
46 the network.)
47 --background color-or-file
49 What to use for the background onto which images are pasted.
50 This may be a color name, a hexadecimal RGB specification in
51 the form '#rrggbb', or the name of an image file.
52 --size WxH
54 Normally, the output image will be made to be the size of the
55 screen (or target window). This lets you specify the desired
56 size.
57 --opacity ratio
59 How transparently to paste the images together, with 0.0 mean‐
60 ing "completely transparent" and 1.0 meaning "opaque." Default
61 0.85. A value of around 0.3 will produce an interestingly
62 blurry image after a while.
63 --no-output
65 If this option is specified, then no composite output image
66 will be generated. This is only useful when used in conjunc‐
67 tion with --verbose.
68 --urls-only
70 If this option is specified, then no composite output image
71 will be generated: instead, a list of image URLs will be
72 printed on stdout.
73 --imagemap filename-base
75 If this option is specified, then instead of writing an image
76 to the root window, two files will be created: "base.html" and
77 "base.jpg". The JPEG will be the collage; the HTML file will
78 include that image, and a series of clickable rectangles link‐
79 ing the sub-images to the pages on which they were found, as
80 seen on the web version of WebCollage at
81 https://www.jwz.org/webcollage/
82 --filter command
84 Filter all source images through this command. The command
85 must take a PPM file on stdin, and write a new PPM file to std‐
86 out. One good choice for a filter would be:
87 webcollage -root -filter 'vidwhacker -stdin -stdout'
89 --filter2 command
92 Filter the composite image through this command. The -filter
93 option applies to the sub-images; the -filter2 applies to the
94 final, full-screen image.
95 --http-proxy host:port
97 If you must go through a proxy to connect to the web, you can
98 specify it with this option, or with the $http_proxy or
99 $HTTP_PROXY environment variables.
100 --dictionary file
102 Webcollage normally looks at the system's default spell-check
103 dictionary to generate words to feed into the search engines.
104 You can specify an alternate dictionary with this option.
105 Note that by default, webcollage searches for images using sev‐
107 eral different methods, not all of which involve dictionary
108 words, so using a "topical" dictionary file will not, in it‐
109 self, be as effective as you might be hoping.
110 --directory dir
112 Instead of searching the web for images, use the contents of
113 the given directory.
114 --fps Display the current frame rate and CPU load (MacOS only).
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118 Webcollage on Fedora uses '-directory' option by default, so it does
119 not connect to internet and uses image files on your local disk. If you
120 want webcollage to search for image files on net, use webcollage.origi‐
121 nal .
122
124 DISPLAY to get the default host and display number.
125 XENVIRONMENT
127 to get the name of a resource file that overrides the global
128 resources stored in the RESOURCE_MANAGER property.
129 XSCREENSAVER_WINDOW
131 The window ID to use with --root.
132 http_proxy or HTTP_PROXY
134 to get the default HTTP proxy host and port.
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137 /usr/dict/words, /usr/share/lib/dict/words, or /usr/share/dict/words to
138 find the random words to feed into to various search fields, including
139 Google, Bing, Flickr, Imgur and Tumblr.
140
142 The Internet being what it is, absolutely anything might show up in the
143 collage including -- quite possibly -- pornography, or even nudity.
144
146 Animating GIFs are not supported: only the first frame will be used.
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149 X(1), xscreensaver(1), convert(1), vidwhacker(6x), dadadodo(1), drift‐
150 net(1), EtherPEG, EtherPeek, https://www.jwz.org/webcollage/
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153 Copyright © 1998-2022 by Jamie Zawinski. Permission to use, copy, mod‐
154 ify, distribute, and sell this software and its documentation for any
155 purpose is hereby granted without fee, provided that the above copy‐
156 right notice appear in all copies and that both that copyright notice
157 and this permission notice appear in supporting documentation. No rep‐
158 resentations are made about the suitability of this software for any
159 purpose. It is provided "as is" without express or implied warranty.
160
162 Jamie Zawinski <jwz@jwz.org>, 24-May-1998.
163X Version 11 6.08-1.fc38 (17-Oct-2023) webcollage(6x)