wrapper.py 文件源码

def __init__(self, env):
        """Warp frames to 84x84 as done in the Nature paper and later work."""
        gym.ObservationWrapper.__init__(self, env)
        self.width = 84
        self.height = 84
        self.observation_space = spaces.Box(low=0, high=255, shape=(self.height, self.width, 1))