Opencv is not working in wsgi apache server - apache2

Question

jpg_original = base64.b64decode(img_str.encode("utf-8"))
jpg_as_np = np.frombuffer(jpg_original, dtype=np.uint8)
img_matlab = cv2.imdecode(jpg_as_np, flags=1)
I am trying decode base64 image in apache server,numy operation is working control is stucked at imdecode part. I am new in apache wsgi. Dont know what I am missing. I am sharing apache2.conf
<VirtualHost *:80>
# Python application integration
WSGIDaemonProcess /apache-flask processes=1 threads=4 python-path=/var/www/apache-flask/:/usr/bin/python
WSGIProcessGroup /apache-flask
WSGIScriptAlias / /var/www/apache-flask/apache-flask.wsgi
<Directory "/var/www/apache-flask/app/">
Header set Access-Control-Allow-Origin "*"
WSGIProcessGroup /apache-flask
WSGIApplicationGroup %{GLOBAL}
Options +ExecCGI
Order deny,allow
Allow from all
</Directory>
Alias /static /var/www/apache-flask/app/static
<Directory /var/www/apache-flask/app/static/>
Order allow,deny
Allow from all
</Directory>
ErrorLog ${APACHE_LOG_DIR}/error.log
LogLevel warn
CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>
I have build docker image for apache server. Below is the Dockerfile.
# Set the base image
FROM debian:latest
# File Author / Maintainer
MAINTAINER nitinashu1995#gmail.com
RUN apt-get update -y
RUN apt-get install python3-pip apache2 libapache2-mod-wsgi-py3 -y
RUN apt-get -y install libapache2-mod-wsgi-py3
RUN apt-get install -y apache2
RUN pip3 install -U Flask
RUN pip3 install pymongo
RUN apt-get install iputils-ping -y
RUN apt-get install vim -y
RUN pip3 install pytz
RUN pip3 install -U flask-cors
RUN apt update
# Copy over and install the requirements
COPY ./app/requirements.txt /var/www/apache-flask/app/requirements.txt
RUN pip install -r /var/www/apache-flask/app/requirements.txt
# Copy over the apache configuration file and enable the site
COPY ./apache-flask.conf /etc/apache2/sites-available/apache-flask.conf
RUN a2ensite apache-flask
RUN a2enmod headers
# Copy over the wsgi file
COPY ./apache-flask.wsgi /var/www/apache-flask/apache-flask.wsgi
COPY ./run.py /var/www/apache-flask/run.py
COPY ./app /var/www/apache-flask/app/
RUN a2dissite 000-default.conf
RUN a2ensite apache-flask.conf
# LINK apache config to docker logs.
RUN ln -sf /proc/self/fd/1 /var/log/apache2/access.log && \
ln -sf /proc/self/fd/1 /var/log/apache2/error.log
EXPOSE 80
WORKDIR /var/www/apache-flask
RUN pip install opencv-python-headless==4.5.3.56 numpy
RUN apt install cmake -y
RUN pip install face_recognition
CMD /usr/sbin/apache2ctl -D FOREGROUND
I am not able to run opencv with apache2, I am getting timeout.
[Tue Dec 27 10:15:03.701128 2022] [wsgi:error] [pid 11:tid 140363481642752] [client 192.168.0.138:41568] Timeout when reading response headers from daemon process '/apache-flask':
/var/www/apache-flask/apache-flask.wsgi
I am able to run opencv within container seems some configuration is missing.
Not able to find whats wrong.