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sudo apt install libopencv-dev python3-opencv
NPU Demo is not installed on the board by default. You need to download it from github first
Clone to the board through the git command.
cd {workspace} git clone --recursive https://github.com/khadas/aml_npu_demo_binaries
Or download the compressed package directly, and then unzip it to the board.
There are three directories in NPU Demo: