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.TH BLIND-UNPREMULTIPLY 1 blind
.SH NAME
blind-unpremultiply - Unpremultiply the alpha channel of a video
.SH SYNOPSIS
.B blind-unpremultiply
[-xyz]
.SH DESCRIPTION
.B blind-unpremultiply
reads a video from stdin and divides the colour
with the alpha value for each pixel, and prints
the resulting video to stdout, effectively
undoing affects of
.BR blind-unpremultiply (1).
.SH OPTIONS
.TP
.B -x
Do not modify the X channel (the first channel).
.TP
.B -y
Do not modify the Y channel (the second channel).
.TP
.B -z
Do not modify the Z channel (the third channel).
.SH SEE ALSO
.BR blind (7),
.BR blind-premultiply (1)
.SH AUTHORS
Mattias Andrée
.RI < maandree@kth.se >
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