.TH BLIND-EXTRACT-ALPHA 1 blind
.SH NAME
blind-extract-alpha - Split a video into an alpha mask video and a colour mask video
.SH SYNOPSIS
.B blind-extract-alpha
.I colour-file
.SH DESCRIPTION
.B blind-split
reads a video from stdin and writes the same video,
except fully opaque, to
.IR colour-file ,
and writes a fully opaque video to stdout where
the colour channels have the values from the alpha
channel from the video in stdin.
.SH SEE ALSO
.BR blind (7),
.BR blind-set-alpha (7)
.SH AUTHORS
Mattias Andrée
.RI < maandree@kth.se >