# tf.keras.backend.pool2d

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|---|---|
| [![](https://www.tensorflow.org/images/tf_logo_32px.png) TensorFlow 2 version](https://www.tensorflow.org/api_docs/python/tf/keras/backend/pool2d) | [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/tensorflow/tensorflow/blob/v1.15.0/tensorflow/python/keras/backend.py#L5111-L5167) |

2D Pooling.

#### View aliases


**Compat aliases for migration**

See
[Migration guide](https://www.tensorflow.org/guide/migrate) for
more details.

[`tf.compat.v1.keras.backend.pool2d`](https://www.tensorflow.org/api_docs/python/tf/keras/backend/pool2d), \`tf.compat.v2.keras.backend.pool2d\`

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    tf.keras.backend.pool2d(
        x, pool_size, strides=(1, 1), padding='valid', data_format=None, pool_mode='max'
    )

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| ## Arguments ||
|---|---|
| `x` | Tensor or variable. |
| `pool_size` | tuple of 2 integers. |
| `strides` | tuple of 2 integers. |
| `padding` | string, `"same"` or `"valid"`. |
| `data_format` | string, `"channels_last"` or `"channels_first"`. |
| `pool_mode` | string, `"max"` or `"avg"`. |

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| ## Returns ||
|---|---|
| A tensor, result of 2D pooling. ||

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| ## Raises ||
|---|---|
| `ValueError` | if `data_format` is neither `"channels_last"` or `"channels_first"`. |
| `ValueError` | if `pool_size` is not a tuple of 2 integers. |
| `ValueError` | if `strides` is not a tuple of 2 integers. |
| `ValueError` | if `pool_mode` is neither `"max"` or `"avg"`. |

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