xyz_to_jch        350 src/lcms.c       xyz_to_jch(&xyz, &jch, &vc);
xyz_to_jch        525 src/lcms.c       xyz_to_jch (&xyz1, &jch1, &vc);
xyz_to_jch        526 src/lcms.c       xyz_to_jch (&xyz2, &jch2, &vc);