calculateShift    520 modules/photo/include/opencv2/photo.hpp     CV_WRAP virtual Point calculateShift(InputArray img0, InputArray img1) = 0;
calculateShift     88 modules/photo/src/align.cpp             Point shift = calculateShift(gray_base, gray);
calculateShift    149 modules/photo/test/test_hdr.cpp         Point calc = align->calculateShift(img, res);