vwebp.1
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.\" Hey, EMACS: -*- nroff -*- .TH VWEBP 1 "July 18, 2024" .SH NAME vwebp \- decompress a WebP file and display it in a window .SH SYNOPSIS .B vwebp .RI [ options ] " input_file.webp .br .SH DESCRIPTION This manual page documents the .B vwebp command. .PP \fBvwebp\fP decompresses a WebP file and displays it in a window using OpenGL. .SH OPTIONS .TP .B \-h Print usage summary. .TP .B \-version Print version number and exit. .TP .B \-noicc Don't use the ICC profile if present. .TP .B \-nofancy Don't use the fancy YUV420 upscaler. .TP .B \-nofilter Disable in-loop filtering. .TP .BI \-dither " strength Specify a dithering \fBstrength\fP 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. .TP .BI \-noalphadither By default, quantized transparency planes are dithered during decompression, to smooth the gradients. This flag will prevent this dithering. .TP .B \-usebgcolor Fill transparent areas with the bitstream's own background color instead of checkerboard only. Default is white for non-animated images. .TP .B \-mt Use multi-threading for decoding, if possible. .TP .B \-info Display image information on top of the decoded image. .TP .BI \-\- " string Explicitly specify the input file. This option is useful if the input file starts with an '\-' for instance. This option must appear \fBlast\fP. Any other options afterward will be ignored. If the input file is "\-", the data will be read from \fIstdin\fP instead of a file. .TP .SH KEYBOARD SHORTCUTS .TP .B 'c' Toggle use of color profile. .TP .B 'b' Toggle display of background color. .TP .B 'i' Overlay file information. .TP .B 'd' Disable blending and disposal process, for debugging purposes. .TP .B 'q' / 'Q' / ESC Quit. .SH EXIT STATUS If there were no problems during execution, \fBvwebp\fP exits with the value of the C constant \fBEXIT_SUCCESS\fP. This is usually zero. .PP If an error occurs, \fBvwebp\fP exits with the value of the C constant \fBEXIT_FAILURE\fP. This is usually one. .SH EXAMPLES vwebp picture.webp .br vwebp picture.webp -mt -dither 0 .br vwebp \-\- \-\-\-picture.webp .SH AUTHORS \fBvwebp\fP is a part of libwebp and was written by the WebP team. .br The latest source tree is available at https://chromium.googlesource.com/webm/libwebp .PP This manual page was written for the Debian project (and may be used by others). .SH REPORTING BUGS Please report all bugs to the issue tracker: https://issues.webmproject.org .br Patches welcome! See this page to get started: https://www.webmproject.org/code/contribute/submitting\-patches/ .SH SEE ALSO .BR dwebp (1) .br Please refer to https://developers.google.com/speed/webp/ for additional information.
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