Installation Requirements: PyTorch 1.8.0 TorchVision 0.9.0 Installation conda create -n semseg python=3.7.3 source activate semseg pip install numpy pyyaml opencv-python scipy pip install torch==1.8.0+cu111 torchvision==0.9.0+cu111 -f https://download.pytorch.org/whl/torch_stable.html