vwebp − decompress a WebP file and display it in a window
vwebp [options] input_file.webp
This manual page documents the vwebp command.
vwebp decompresses a WebP file and displays it in a window using OpenGL.
−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. |
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−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.
’c’ |
Toggle use of color profile. |
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’b’ |
Toggle display of background color. |
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’i’ |
Overlay file information. |
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’d’ |
Disable blending and disposal process, for debugging purposes. |
’q’ / ’Q’ / ESC
Quit.
Please report
all bugs to the issue tracker:
https://bugs.chromium.org/p/webp
Patches welcome! See this page to get started:
http://www.webmproject.org/code/contribute/submitting-patches/
vwebp
picture.webp
vwebp picture.webp -mt -dither 0
vwebp −− −−−picture.webp
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).
dwebp(1)
Please refer to http://developers.google.com/speed/webp/ for
additional information.