rgb_to_bw man page on Tru64

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RGB_TO_BW(3)							  RGB_TO_BW(3)

NAME
       rgb_to_bw - convert a color scanline to black and white.

SYNOPSIS
       #include <rle.h>

       void rgb_to_bw( red, green, blue, bw, length );
       rle_pixel * red, * green, * blue, *bw;
       int length;

DESCRIPTION
       rgb_to_bw  converts red/green/blue color information to black and white
       using the NTSC Y transform:
     Y = 0.30 * R + 0.59 * G + 0.11 * B	 .  The arguments point	 to  scanlines
     with  length bytes in each.  bw may be identical to one of red, green, or
     blue.

SEE ALSO
       tobw(1), librle(3), RLE(5).

AUTHOR
       Spencer W. Thomas
       University of Utah

4th Berkeley Distribution	    2/2/87			  RGB_TO_BW(3)
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