How to use cnpy to cross the value between cpp and python?

CPP Version

#include"cnpy.h"

#include "opencv2/core.hpp"

#include "opencv2/imgproc.hpp"

#include "opencv2/highgui.hpp"

using namespace cv;

int main()

{

    Mat img(100, 100, CV_32FC3);

    randu(img, Scalar(0, 0, 0), Scalar(255, 255, 255));

    std::cout << img << std::endl;

    img = img/255.0;

    std::cout << img << std::endl;

    float* tmp = (float*)img.data;

    cnpy::npy_save("img.npy", tmp, {100,100,3},"w");

    // cv::imwrite("img1.jpg", img);

}

Python Version

import numpy as np

import cv2

temp = np.load("img.npy")

print(temp)

# cv2.imwrite("img2.jpg", temp)