CALIB_FIX_INTRINSIC  225 modules/calib3d/include/opencv2/calib3d.hpp        CALIB_FIX_INTRINSIC       = 0x00100,
CALIB_FIX_INTRINSIC 1639 modules/calib3d/include/opencv2/calib3d.hpp         CALIB_FIX_INTRINSIC         = 256