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authorMattias Andrée <maandree@kth.se>2017-01-20 15:38:03 +0100
committerMattias Andrée <maandree@kth.se>2017-01-20 15:38:03 +0100
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Signed-off-by: Mattias Andrée <maandree@kth.se>
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+.TH BLIND-SET-LUMA 1 blind
+.SH NAME
+blind-set-luma - Multiply the luminosity of a video
+.SH SYNOPSIS
+.B blind-set-luma
+.I luma-stream
+.SH DESCRIPTION
+.B blind-set-luma
+reads a video from stdin and a mask video from
+.IR luma-stream .
+The video is printed to stdout, with the luminosity
+of each pixel multiplied by the product of the
+luminosity and the alpha value of the corresponding
+pixel and frame in the mask video.
+.P
+If stdin is longer than
+.IR alpha-stream ,
+the remainder or stdin is printed without any changes.
+If stdin is shorter than
+.IR alpha-stream ,
+the remainder of
+.I alpha-stream
+is ignored but may be partially read.
+.SH AUTHORS
+Mattias Andree
+.RI < maandree@kth.se >