CentOS 7.0 - man page for gif2webp (centos section 1)
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gif2webp - Convert a GIF image to WebP
gif2webp [options] input_file.gif -o output_file.webp
This manual page documents the gif2webp command.
gif2webp converts a GIF image to a WebP image.
The basic options are:
Specify the name of the output WebP file. If omitted, gif2webp will perform conver-
sion but only report statistics.
Print the version number (as major.minor.revision) and exit.
-lossy Encode the image using lossy compression.
Specify the compression factor for RGB channels between 0 and 100. The default is
In case of lossless compression (default), a small factor enables faster compres-
sion speed, but produces a larger file. Maximum compression is achieved by using a
value of 100.
In case of lossy compression (specified by the -lossy option), a small factor pro-
duces a smaller file with lower quality. Best quality is achieved by using a value
-m int Specify the compression method to use. This parameter controls the trade off
between encoding speed and the compressed file size and quality. Possible values
range from 0 to 6. Default value is 4. When higher values are used, the encoder
will spend more time inspecting additional encoding possibilities and decide on the
quality gain. Lower value can result is faster processing time at the expense of
larger file size and lower compression quality.
-f int For lossy encoding only (specified by the -lossy option). Specify the strength of
the deblocking filter, between 0 (no filtering) and 100 (maximum filtering). A
value of 0 will turn off any filtering. Higher value will increase the strength of
the filtering process applied after decoding the picture. The higher the value the
smoother the picture will appear. Typical values are usually in the range of 20 to
-v Print extra information.
-quiet Do not print anything.
Please report all bugs to our issue tracker: http://code.google.com/p/webp/issues
Patches welcome! See this page to get started: http://www.webmproject.org/code/contrib-
gif2webp picture.gif -o picture.webp
gif2webp -q 70 picture.gif -o picture.webp
gif2webp -lossy -m 3 picture.gif -o picture_lossy.webp
gif2webp -lossy -f 50 picture.gif -o picture.webp
gif2webp was written by the WebP team.
The latest source tree is available at http://www.webmproject.org/code
This manual page was written by Urvang Joshi <email@example.com>, for the Debian project
(and may be used by others).
dwebp(1), cwebp(1), webpmux(1).
Please refer to http://developers.google.com/speed/webp/ for additional information.
February 01, 2013 GIF2WEBP(1)
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