void Clear_EXIF ()
{
    FocalplaneXRes = 0;
    FocalplaneUnits = 0;
    ExifImageWidth = 0;
    NumOrientations = 0;
    MotorolaOrder = 0;
    OrientationPtr[0] = OrientationPtr[1] = NULL;
    OrientationNumFormat[0] = OrientationNumFormat[1] = 0;
}
void Clear_EXIF ()
{
    FocalplaneXRes = 0;
    FocalplaneUnits = 0;
    ExifImageWidth = 0;
    NumOrientations = 0;
    MotorolaOrder = 0;
    OrientationPtr[0] = OrientationPtr[1] = NULL;
    OrientationNumFormat[0] = OrientationNumFormat[1] = 0;
}