![](/img/trans.png)
[英]Output layer for binary classification using keras ResNet50 model
[英]Intermediate Output of let' s say Resnet50 from Keras Model
import keras
print(keras.__version__)
#2.3.0
from keras.models import Sequential
from keras.layers import Input, Dense,TimeDistributed
from keras.models import Model
model = Sequential()
resnet = ResNet50(include_top = False, pooling = 'avg', weights = 'imagenet')
model.add(resnet)
model.add(Dense(10, activation = 'relu'))
model.add(Dense(6, activation = 'sigmoid'))
model.summary()
// 训练 // model.fit(..) 完成
现在如何从图层中提取 output?
model.layers[0]._name='resnet50'
print(model.layers[0].name) # prints resnet50
layer_output = model.get_layer("resnet50").output
intermediate_model = Model(inputs=[model.input, resnet.input], outputs=[layer_output])
result = intermediate_model.predict([x, x])
print(result.shape)
print(result[0].shape)
出错了
AttributeError:层 re.net50 有多个入站节点,因此“层输出”的概念定义不明确。 请改用
get_output_at(node_index)
。 添加代码添加 Markdown
请再次尝试使用tf.keras
导入 model 和图层。
from tensorflow.keras.models import Sequential
from tensorflow.keras.layers import Input, Dense,TimeDistributed
from tensorflow.keras.models import Model
然后运行相同的:
model.layers[0]._name='resnet50'
print(model.layers[0].name) # prints resnet50
layer_output = model.get_layer("resnet50").output
intermediate_model = Model(inputs=[model.input, resnet.input], outputs=[layer_output])
x = tf.ones((1, 250, 250, 3))
result = intermediate_model.predict([x, x])
print(result.shape)
print(result[0].shape)
Output:
resnet50
(1, 2048)
(2048,)
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