ref: https://github.com/CMU-Perceptual-Computing-Lab/openpose
./OpenPose-x86_64.AppImage \
--model_folder ./models \
--image_dir ./src_img \
--write_images ./output_images/ \
--write_json ./output_json/ \
--display 0 \
--net_resolution "656x368"
./OpenPose-x86_64.AppImage \
--model_folder ./models \
--image_dir ./src_img \
--write_images ./output_images/ \
--write_json ./output_json/ \
--display 0 \
--render_pose 1 \
--disable_blending