【发布时间】:2017-09-25 19:03:20
【问题描述】:
我想使用我在网上训练的 tensorflow 模型,并使用我分发的 python 程序在本地运行它。
训练后,我得到一个目录 /model,其中包含两个文件 /saved_model.pb 和一个文件夹 /variables。在本地部署它的最简单方法是什么?
我关注 here 部署冻结模型,但我无法完全阅读 .pb。我直接将 saved_model.pb 下载到我的工作中并尝试了
with tf.gfile.GFile("saved_model.pb", "rb") as f:
graph_def = tf.GraphDef()
graph_def.ParseFromString(f.read())
google.protobuf.message.DecodeError: Truncated message.
看着 SO here,他们建议了一条不同的路线。
with tf.gfile.GFile("saved_model.pb", "rb") as f:
proto_b=f.read()
graph_def = tf.GraphDef()
text_format.Merge(proto_b, graph_def)
builtins.TypeError: a bytes-like object is required, not 'str'
我觉得这很混乱,因为
type(proto_b)
<class 'bytes'>
type(graph_def)
<class 'tensorflow.core.framework.graph_pb2.GraphDef'>
为什么会出错,字符串也不是?
部署经过云训练的模型的最佳方式是什么?
完整代码
import tensorflow as tf
import sys
from google.protobuf import text_format
# change this as you see fit
#image_path = sys.argv[1]
image_path="test.jpg"
# Read in the image_data
image_data = tf.gfile.FastGFile(image_path, 'rb').read()
# Loads label file, strips off carriage return
label_lines = [line.rstrip() for line
in tf.gfile.GFile("dict.txt")]
# Unpersists graph from file
with tf.gfile.GFile("saved_model.pb", "rb") as f:
proto_b=f.read()
graph_def = tf.GraphDef()
text_format.Merge(proto_b, graph_def)
with tf.Session() as sess:
# Feed the image_data as input to the graph and get first prediction
softmax_tensor = sess.graph.get_tensor_by_name('conv1/weights:0')
predictions = sess.run(softmax_tensor, \
{'DecodeJpeg/contents:0': image_data})
# Sort to show labels of first prediction in order of confidence
top_k = predictions[0].argsort()[-len(predictions[0]):][::-1]
for node_id in top_k:
human_string = label_lines[node_id]
score = predictions[0][node_id]
print('%s (score = %.5f)' % (human_string, score))
【问题讨论】:
标签: python tensorflow google-cloud-ml-engine