ppmtoyuvsplit(1)UNIX System V (9 September 1993) ppmtoyuvsplit(1)



     NAME
          ppmtoyuvsplit - convert a portable pixmap into 3 subsampled
          raw YUV files

     SYNOPSIS
          ppmtoyuvsplit basename [ppmfile]

     DESCRIPTION
          Reads a portable pixmap as input.  Produces 3 raw files
          basename.Y, basename.U and basename.V as output.  These
          files are the subsampled raw YUV representation of the input
          pixmap, as required by the Stanford MPEG codec. The
          subsampling is done by arithmetic mean of 4 pixels colors
          into one. The YUV values are scaled according to CCIR.601,
          as assumed by MPEG.

     SEE ALSO
          mpeg(1), ppm(5)

     AUTHOR
          Copyright (C) 1993 by Andre Beck. (Andre_Beck@IRS.Inf.TU-
          Dresden.de)

          Based on ppmtoyuv.c































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