network_builder.py 文件源码

def maxpool_layer(self, input_tensor, layer_number):
        """Build a maxpooling layer.

               Args:
                   input_tensor: The output from the layer before.
                   layer_number (int): The number of the layer in the network.

               Returns:
                   tensor: The max pooled output.
               """

        _, input_tensor = self._ensure_2d(input_tensor)
        layer_spec = self.network_spec['layers'][layer_number]
        kernel_shape = (1,  # First number has to be one for ksize of maxpool layer.
                        layer_spec['kernel']['height'],
                        layer_spec['kernel']['width'],
                        layer_spec['kernel']['outchannels'])
        kernel_strides = (layer_spec['strides']['inchannels'],
                          layer_spec['strides']['x'],
                          layer_spec['strides']['y'],
                          layer_spec['strides']['batch'])

        with tf.name_scope('maxpool' + str(layer_number)):
            pool = tf.nn.max_pool(input_tensor, ksize=kernel_shape,
                                  strides=kernel_strides, padding='SAME', name='maxpool')
        return pool