isnan 365 modules/core/src/opencl/arithm.cl if (isnan(srcelem1)) \ isnan 138 modules/photo/src/fast_nlmeans_denoising_invoker_commons.hpp if (std::isnan(w)) w = 1.0; // Handle h = 0.0 isnan 260 modules/photo/src/fast_nlmeans_denoising_invoker_commons.hpp if (std::isnan(w)) w = 1.0; // Handle h = 0.0 isnan 37 modules/photo/src/opencl/nlmeans.cl wlut_t weight = convert_wlut_t(fixedPointMult * (isnan(w) ? (w_t)1.0 : w));