02716e101ec2a8eb7284f95b17a7e589ffbc075d,ch06/01_dqn_pong.py,ImageWrapper,_observation,#ImageWrapper#Any#,34

Before Change

    def _observation(self, obs):
        obs = imresize(obs, (110, 84))
        obs = obs.mean(axis=-1, keepdims=True)

        obs = obs[self.X_OFS:self.X_OFS+84, :, :]
        obs = np.moveaxis(obs, 2, 0)
        return obs.astype(np.float32) / 255.0

After Change

        self.observation_space = gym.spaces.Box(0, 255, self._observation(probe).shape)

    def _observation(self, obs):
        img = Image.fromarray(obs)
        img = img.convert("YCbCr")
        img = img.resize((self.TARGET_SIZE, self.TARGET_SIZE))
        data = np.asarray(img.getdata(0), np.uint8).reshape(img.size)
        return np.expand_dims(data, 0)


class BufferWrapper(gym.ObservationWrapper):
    def __init__(self, env, n_steps, dtype=np.uint8):

Instances