Detectron2 in C++

I am trying to convert detectron 2 inference in C++, CPU and VS 2019 with this code : detectron2/tools/deploy at main · facebookresearch/detectron2 · GitHub. Cmake successfully find OpenCV 4 and libtorch but I haven’t found on Internet the libtorchvision, where it is please ?
thank you
best regards
PS : I found Libtorch here : Start Locally | PyTorch