//docs/MPImage.doc/MPRGBToGrey

   NAME   
  MPRGBToGrey -- Convert RGB image to GreyScale (V7)

   SYNOPSIS
  MPRGBToGrey(MPp,Linear);
              A0  D0

  void MPRGBToGrey
             (struct MPProcess *,BOOL);

   FUNCTION
  Convert RGB image to GreyScale.

   INPUTS
  MPp      - Contains the Red,Green and Blue chunky pixels
             and the Width and Height
  Linear   - If True then map linear,
             otherwise give more weight to Green.

   RESULT
  The data pointed to by MPp->Red is updated to the GreyScale pixels.

   EXAMPLE

   NOTES

   BUGS
  Not tested.

   SEE ALSO