numpy:将图像蒙版与RGB相结合，得到彩色图像蒙版

import numpy as np
import cv2

rgb_image = cv2.imread('path/to/rgb_image.jpg')
gray_mask = cv2.imread('path/to/gray_mask.jpg', 0)  # 确保以灰度模式读取蒙版

color_mask = cv2.applyColorMap(gray_mask, cv2.COLORMAP_JET)

colored_mask = cv2.resize(color_mask, (rgb_image.shape[1], rgb_image.shape[0]))  # 调整彩色蒙版的尺寸以匹配RGB图像

# 将彩色蒙版与RGB图像相结合
combined_image = np.where(colored_mask != [0, 0, 0], colored_mask, rgb_image)

cv2.imshow('Combined Image', combined_image)
cv2.waitKey(0)
cv2.destroyAllWindows()

cv2.imwrite('path/to/combined_image.jpg', combined_image)