def color_normalization(image, mean, stddev):
    """
    Perform color normalization on the image with the given mean and stddev.
    Args:
        image (ndarray): image to perform color normalization.
        mean (ndarray): mean value to subtract. dtype is 'float'
        stddev (ndarray): stddev to devide.
    """
    # Input image should in format of CHW
    assert len(mean) == image.shape[0], "channel mean not computed properly"
    assert len(stddev) == image.shape[0], "channel stddev not computed properly"
    return (image - mean) / stddev