Passing a mat image from C++ code to Python file

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C++

I need to call a python code from a .cpp file and I should be able to pass cv:Mat image from that cpp file to python .

What I have tried:

From python documentation , I have searched how to call .py file from the cpp file.
I am able to do that, also I could pass some variable.
// Below is the working code :-

CPP Code

cv::Mat  imgpy = imread("D:\\DefectedImg.bmp");

Py_Initialize();

PyObject *pName, *pModule, *pDict, *pFunc, *pArgs, *pValue1, *pValue2, *mat;		
	
	pName = PyString_FromString("Sample");

	pModule = PyImport_Import(pName);

	pDict = PyModule_GetDict(pModule);	

	pFunc = PyObject_GetAttrString(pDict, "add");

	pArgs = PyTuple_New(2);

	pValue1 = PyInt_FromLong(2);
	pValue2 = PyInt_FromLong(3);

	// Set the Python int as the first and second arguments to the method.

	PyTuple_SetItem(pArgs, 0, pValue1);

	PyTuple_SetItem(pArgs, 1, pValue2);
	

	PyObject* pResult = PyObject_CallObject(pFunc, pArgs);

Python file Sample.py

import sys
import cv2
# import numpy as np
# Returns the sum of two numbers.
def add(a, b):
	return a+b

This is working on passing two variable to py file and return result.
I need to pass the mat image imgpy from C++ file to puthon file.
Any easy method to do that?