My GPU is Nvidia Geforce GTX 1650 but this program works on cpu, not gpu., despite CUDA installed properly. Does anyone have a similar problem?

When I run the code it prints this:
` [ WARN:0] global C:\opencv\opencv-4.5.1\modules\dnn\src\dnn.cpp (1442) cv::dnn::dnn4_v20201117::Net::Impl::setUpNet DNN module was not built with CUDA backend; switching to CPU`