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)