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我想從numpy數組中創建tfrecord格式的數據集。我試圖存儲2D和3D座標。如何將numpy數組存儲爲tfrecord?
2D座標型的形狀(2,10)的numpy的陣列float64 三維座標型float64
的形狀(3,10)的numpy的陣列,這是我的代碼:
def _floats_feature(value):
return tf.train.Feature(float_list=tf.train.FloatList(value=value))
train_filename = 'train.tfrecords' # address to save the TFRecords file
writer = tf.python_io.TFRecordWriter(train_filename)
for c in range(0,1000):
#get 2d and 3d coordinates and save in c2d and c3d
feature = {'train/coord2d': _floats_feature(c2d),
'train/coord3d': _floats_feature(c3d)}
sample = tf.train.Example(features=tf.train.Features(feature=feature))
writer.write(sample.SerializeToString())
writer.close()
當我運行此我得到的錯誤:
feature = {'train/coord2d': _floats_feature(c2d),
File "genData.py", line 19, in _floats_feature
return tf.train.Feature(float_list=tf.train.FloatList(value=value))
File "C:\Users\User\AppData\Local\Programs\Python\Python36\lib\site-packages\google\protobuf\internal\python_message.py", line 510, in init
copy.extend(field_value)
File "C:\Users\User\AppData\Local\Programs\Python\Python36\lib\site-packages\google\protobuf\internal\containers.py", line 275, in extend
new_values = [self._type_checker.CheckValue(elem) for elem in elem_seq_iter]
File "C:\Users\User\AppData\Local\Programs\Python\Python36\lib\site-packages\google\protobuf\internal\containers.py", line 275, in <listcomp>
new_values = [self._type_checker.CheckValue(elem) for elem in elem_seq_iter]
File "C:\Users\User\AppData\Local\Programs\Python\Python36\lib\site-packages\google\protobuf\internal\type_checkers.py", line 109, in CheckValue
raise TypeError(message)
TypeError: array([-163.685, 240.818, -114.05 , -518.554, 107.968, 427.184,
157.418, -161.798, 87.102, 406.318]) has type <class 'numpy.ndarray'>, but expected one of: ((<class 'numbers.Real'>,),)
我不知道如何解決這個問題。我應該存儲的功能爲int64或字節?我不知道如何去做這件事,因爲我對tensorflow完全陌生。任何幫助將是偉大的!感謝