Update Dockerfile

Dockerfile

@@ -10,6 +10,9 @@ COPY ./requirements.txt /code/requirements.txt
 RUN apt-get update && apt-get install -y poppler-utils
 RUN apt-get install libleptonica-dev tesseract-ocr libtesseract-dev python3-pil tesseract-ocr-eng tesseract-ocr-script-latn -y
 RUN apt-get install tesseract-ocr-vie  -y
+RUN apt-get install -y python3-opencv
+RUN apt-get install -y libgl1
+RUN apt-get install -y ffmpeg libsm6 libxext6 libgl1-mesa-glx -y
 
 # Install requirements.txt 
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt