mmcv/image/transforms/colorspace.py
def gray2bgr(img):
    """Convert a grayscale image to BGR image.

    Args:
        img (ndarray or str): The input image.

    Returns:
        ndarray: The converted BGR image.
    """
    img = img[..., None] if img.ndim == 2 else img
    out_img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
    return out_img
def gray2bgr(img):
    img = img[..., None] if img.ndim == 2 else img
    out_img = cv2.cvtColor(img, cv2.COLOR_GRAY2BGR)
    return out_img
def gray2bgr ( img ) : img = img [ ... , None ] if img . ndim == 2 else img out_img = cv2 . cvtColor ( img , cv2 . COLOR_GRAY2BGR ) return out_img
Convert a grayscale image to BGR image.

    Args:
        img (ndarray or str): The input image.

    Returns:
        ndarray: The converted BGR image.
Convert a grayscale image to BGR image .