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.

BUGS

       Please report all bugs to the issue tracker: https://bugs.chromium.org/p/webp
       Patches       welcome!       See       this       page       to        get        started:
       https://www.webmproject.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.googlesource.com/webm/libwebp

       This manual page was written for the Debian project (and may be used by others).

SEE ALSO

       dwebp(1)
       Please refer to https://developers.google.com/speed/webp/ for additional information.

                                        November 17, 2021                                VWEBP(1)