将元素从opencv矩阵复制到特征矩阵

import cv2
import numpy as np

source_matrix = cv2.imread('source_image.jpg', cv2.IMREAD_GRAYSCALE)

feature_matrix = np.zeros((source_matrix.shape[0], source_matrix.shape[1]), dtype=np.uint8)

for i in range(source_matrix.shape[0]):
    for j in range(source_matrix.shape[1]):
        feature_matrix[i, j] = source_matrix[i, j]