Function conv2d

2D convolution with non-linear operation. Args: inputs: 4-D tensor variable BxHxWxC num_output_channels: int kernel_size: a list of 2 ints scope: string stride: a list of 2 ints padding: 'SAME' or 'VALID' data_format: 'NHWC' or 'NCHW' use_xavier: bool, use xavier_

(inputs,
           num_output_channels,
           kernel_size,
           scope,
           stride=[1, 1],
           padding='SAME',
           data_format='NHWC',
           use_xavier=True,
           stddev=1e-3,
           weight_decay=None,
           activation_fn=tf.nn.relu,
           bn=False,
           bn_decay=None,
           is_training=None)