_Bayer
window[2][col] = _Bayer(col, wlast);
diff = _Bayer(col, row) - avg;
_Bayer(col, row) = (uint16)CLIP(avg + diff + 0.5);
= _Bayer(col, row);
_Bayer(column, row) = pixel[column];
_Bayer(column, row) = _GetDecodeBits(12);
_Bayer(icol, irow) = pixel[r * rawWidth + col];
_Bayer(col - fLeftMargin, row - fTopMargin) = val;
uint16& _Bayer(int32 column, int32 row);