I've also noticed when I switch to opencv version= 4.1.2.30 it starts working I can then see opencv windows and everything works flowlessly, but as soon as I switch to opencv version= 4.5.5.64 it stops working. I want to stick to opencv version= 4.5.5.64. Please can anyone guide me what dependency i should install to make it working or may be there is something that I am missing.

YOLOv5 🚀 by Ultralytics, GPL-3.0 license

Start FROM NVIDIA PyTorch image https://ngc.nvidia.com/catalog/containers/nvidia:pytorch

FROM nvcr.io/nvidia/pytorch:22.04-py3
RUN rm -rf /opt/pytorch # remove 1.2GB dir

Downloads to user config dir

#ADD https://ultralytics.com/assets/Arial.ttf https://ultralytics.com/assets/Arial.Unicode.ttf /root/.config/Ultralytics/

Install linux packages

RUN apt-get update && apt-get autoclean
RUN apt-get update && apt-get install -y --no-install-recommends python3-pip
RUN pip3 install pyqt5
RUN apt-get install -y '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
RUN apt-get install -y libsm6 libxrender1 libfontconfig1
ENV QT_DEBUG_PLUGINS=1

Install pip packages

COPY requirements.txt .
RUN python -m pip install --upgrade pip
RUN pip uninstall -y torch torchvision torchtext Pillow
RUN pip install --no-cache -r requirements.txt albumentations wandb gsutil notebook Pillow>=9.1.0
torch torchvision --extra-index-url https://download.pytorch.org/whl/cu113

#RUN pip install opencv-contrib-python==4.1.2.30

RUN pip install opencv-contrib-python==4.5.5.64
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY . /usr/src/app
#RUN git clone https://github.com/ultralytics/yolov5 /usr/src/yolov5

Set environment variables

ENV OMP_NUM_THREADS=8