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BLIND-SET-LUMA(1)	    General Commands Manual	     BLIND-SET-LUMA(1)

NAME
       blind-set-luma -	Multiply the luminosity	of a video

SYNOPSIS
       blind-set-luma luma-stream

DESCRIPTION
       blind-set-luma  reads  a	 video	from stdin and a mask video from 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.

       If stdin	is longer than luma-stream, the	remainder of stdin is  printed
       without any changes.  If	stdin is shorter than luma-stream, the remain-
       der of luma-stream is ignored but may be	partially read.

NOTES
       In most cases, this is not what you want	to use,	instead	 you  probably
       want  to	 use  blind-arithm(1) to multiple the X, Y and Z values	on one
       value. This produces the	same affect as reducing	the intensity  of  the
       light sources, which is not what	blind-set-luma does.

SEE ALSO
       blind(7),  blind-single-colour(1), blind-arithm(1), blind-set-alpha(1),
       blind-invert-luma(1), blind-set-saturation(1)

AUTHORS
       Mattias AndrA(C)e <maandree@kth.se>

				   blind 1.1		     BLIND-SET-LUMA(1)

NAME | SYNOPSIS | DESCRIPTION | NOTES | SEE ALSO | AUTHORS

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