点击识别像素rgb值

import cv2
img = cv2.imread('img.png')
def click_info(event, x, y, flags, param):
    # 只处理双击事件
    if event == cv2.EVENT_LBUTTONDBLCLK:
        print('坐标', x, y)
        b, g, r = img[y, x]     # 获取b, g, r
        print("像素点的bgr值", b, g, r)
cv2.namedWindow('image')
cv2.setMouseCallback('image',  click_info)
while True:
    cv2.imshow("image", img)
    # 点击 esc键
    if cv2.waitKey(0) & 0xFF ==27:
        break
cv2.destroyAllWindows()