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
banding 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.
EXIT STATUS
If there were no problems during execution, vwebp exits with the value
of the C constant EXIT_SUCCESS. This is usually zero.
If an error occurs, vwebp exits with the value of the C constant
EXIT_FAILURE. This is usually one.
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.googlesource.com/webm/libwebp
This manual page was written for the Debian project (and may be used by
others).
REPORTING BUGS
Please report all bugs to the issue tracker:
https://issues.webmproject.org
Patches welcome! See this page to get started:
https://www.webmproject.org/code/contribute/submitting-patches/
SEE ALSO
dwebp(1)
Please refer to https://developers.google.com/speed/webp/ for
additional information.
July 18, 2024 vwebp(1)
webp 1.5.0 - Generated Sun Dec 29 19:10:14 CST 2024