add pt2tf tool

2020-09-23 09:09:49 +08:00
parent 7f7b7df65d
commit 18aefa4dd0
407 changed files with 16211 additions and 0 deletions
@@ -0,0 +1,30 @@
+import tensorflow as tf
+
+from onnx_tf.handlers.backend_handler import BackendHandler
+from onnx_tf.handlers.handler import onnx_op
+from onnx_tf.handlers.handler import tf_func
+
+
+@onnx_op("Elu")
+@tf_func(tf.nn.elu)
+class Elu(BackendHandler):
+
+  @classmethod
+  def _common(cls, node, **kwargs):
+    x = kwargs["tensor_dict"][node.inputs[0]]
+    alpha = node.attrs.get("alpha", 1.0)
+    if alpha != 1.0:
+      return [
+          tf.cast(x < 0.0, tf.float32) * alpha * (tf.exp(x) - 1.0) +
+          tf.cast(x >= 0.0, tf.float32) * x
+      ]
+    else:
+      return [cls.make_tensor_from_onnx_node(node, **kwargs)]
+
+  @classmethod
+  def version_1(cls, node, **kwargs):
+    return cls._common(node, **kwargs)
+
+  @classmethod
+  def version_6(cls, node, **kwargs):
+    return cls._common(node, **kwargs)