calcSparseBackProj_ 2062 modules/imgproc/src/histogram.cpp         calcSparseBackProj_<ushort, ushort>(ptrs, deltas, imsize, hist, dims, ranges,
calcSparseBackProj_ 2065 modules/imgproc/src/histogram.cpp         calcSparseBackProj_<float, float>(ptrs, deltas, imsize, hist, dims, ranges,