createTonemapMantiuk  473 modules/photo/include/opencv2/photo.hpp createTonemapMantiuk(float gamma = 1.0f, float scale = 0.7f, float saturation = 1.0f);
createTonemapMantiuk  121 modules/photo/test/test_hdr.cpp     Ptr<TonemapMantiuk> mantiuk = createTonemapMantiuk(gamma);