vwebp - decompress a WebP file and display it in a window
vwebp [options] input_file.webp
VWEBP(1) General Commands Manual VWEBP(1)
NAME
vwebp - decompress a WebP file and display it in a window
SYNOPSIS
vwebp [options] input_file.webp
DESCRIPTION
This manual page documents the vwebp command.
vwebp decompresses a WebP file and displays it in a window using
OpenGL.
OPTIONS
-h Print usage summary.
-version
Print version number and exit.
-noicc Don't use the ICC profile if present.
-nofancy
Don't use the fancy YUV420 upscaler.
-nofilter
Disable in-loop filtering.
-dither strength
Specify a dithering strength between 0 and 100. Dithering is a
post-processing effect applied to chroma components in lossy
compression. It helps by smoothing gradients and avoiding band-
ing artifacts. Default: 50.
-noalphadither
By default, quantized transparency planes are dithered during
decompression, to smooth the gradients. This flag will prevent
this dithering.
-usebgcolor
Fill transparent areas with the bitstream's own background color
instead of checkerboard only. Default is white for non-animated
images.
-mt Use multi-threading for decoding, if possible.
-info Display image information on top of the decoded image.
-- string
Explicitly specify the input file. This option is useful if the
input file starts with an '-' for instance. This option must
appear last. Any other options afterward will be ignored. If
the input file is "-", the data will be read from stdin instead
of a file.
KEYBOARD SHORTCUTS
'c' Toggle use of color profile.
'b' Toggle display of background color.
'i' Overlay file information.
'd' Disable blending and disposal process, for debugging purposes.
'q' / 'Q' / ESC
Quit.
BUGS
Please report all bugs to the issue tracker:
https://bugs.chromium.org/p/webp
Patches welcome! See this page to get started: http://www.webmpro-
ject.org/code/contribute/submitting-patches/
EXAMPLES
vwebp picture.webp
vwebp picture.webp -mt -dither 0
vwebp -- ---picture.webp
AUTHORS
vwebp is a part of libwebp and was written by the WebP team.
The latest source tree is available at https://chromium.google-
source.com/webm/libwebp
This manual page was written for the Debian project (and may be used by
others).
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+-----------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------------+
|Availability | image/library/libwebp |
+---------------+-----------------------+
|Stability | Pass-through volatile |
+---------------+-----------------------+
SEE ALSO
dwebp(1)
Please refer to http://developers.google.com/speed/webp/ for additional
information.
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from http://downloads.webmpro-
ject.org/releases/webp/libwebp-1.2.1.tar.gz.
Further information about this software can be found on the open source
community website at https://www.webmproject.org/.
June 5, 2019 VWEBP(1)