翻译一下这段python代码def mouse_callback(event, x, y, flags, param): if event == cv2.EVENT_LBUTTONDOWN: lab_pixel = lab_image[y, x] print("LAB value at ({}, {}): {}".format(x, y, lab_pixel))

Sure! Here's the translation of the given Python code:

def mouse_callback(event, x, y, flags, param):
    if event == cv2.EVENT_LBUTTONDOWN:
        lab_pixel = lab_image[y, x]
        print("LAB value at ({}, {}): {}".format(x, y, lab_pixel))

Translated code:

def mouse_callback(event, x, y, flags, param):
    if event == cv2.EVENT_LBUTTONDOWN:
        lab_pixel = lab_image[y, x]
        print("({}， {}）处的LAB值: {}".format(x, y, lab_pixel))

Please note that I assumed you wanted the translation in Chinese. Let me know if you have any further questions!