public virtual int PixVolume(PixVolume pv0, PixVolume pv1) { return(0); }
public bool PixVolume(PixVolume pv0, PixVolume pv1) { return(VolumeEqualFun(pv0, pv1)); }
public int PixVolume(PixVolume pv) { return(1); }
public virtual IPix PixVolume(PixVolume pv) { return(pv); }