# tf.keras.backend.image_data_format

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| [![](https://www.tensorflow.org/images/GitHub-Mark-32px.png) View source on GitHub](https://github.com/keras-team/keras/tree/v2.14.0/keras/backend_config.py#L117-L129) |

Returns the default image data format convention.

    tf.keras.backend.image_data_format()

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| ## Returns ||
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| A string, either `'channels_first'` or `'channels_last'` ||

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#### Example:

    tf.keras.backend.image_data_format()
    'channels_last'