[英]Trying to export a model from keras to CoreML
这是我第一个使用 keras 的项目。
这个想法是创建一个可以识别木材颜色的模型。 如果一种颜色是我识别的颜色,我会得到1
如果不是,我会得到0
。
我有一个像这样的csv
文件:
red,green,blue,isWood
63,110,255,0
58,104,255,0
63,112,255,0
96,141,198,1
95,140,197,1
95,138,195,1
我根据我在网上找到的几个教程的组合创建了这个模型。
import pandas as pd
train_df = pd.read_csv('woodData.csv')
train_df.head()
#create a dataframe with all training data except the target column
train_X = train_df.drop(columns=['isWood'])
#check that the target variable has been removed
train_X.head()
#create a dataframe with only the target column
train_y = train_df[['isWood']]
#view dataframe
train_y.head()
from keras.models import Sequential
from keras.layers import Dense
#create model
model = Sequential()
#get number of columns in training data
n_cols = train_X.shape[1]
#add model layers
model.add(Dense(10, activation='relu', input_shape=(n_cols,)))
model.add(Dense(10, activation='relu'))
model.add(Dense(1))
#compile model using mse as a measure of model performance
model.compile(optimizer='adam', loss='mean_squared_error')
# LINE 1
coreml_model = coremltools.converters.keras.convert(model, ['red','green','blue'], 'isWood')
coreml_model.input_description['red'] = 'red value'
coreml_model.input_description['green'] = 'green value'
coreml_model.input_description['blue'] = 'blue value'
coreml_model.output_description['isWood'] = '1 = is wood, 0 is not wood'
coreml_model.save('wood.mlmodel')
此应用程序在线崩溃
coreml_model.input_description['green'] = 'green value'
带有以下错误消息:
Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/coremltools/models/model.py in __setitem__(self, key, value)
77 f.shortDescription = value
78 return
---> 79 raise AttributeError("No feature with name %s." % key)
80
81 def __iter__(self):
AttributeError: No feature with name green.
我试图将LINE 1
修改为
coreml_model = coremltools.converters.keras.convert(model, input_names=['red','green','blue'], output_names='isWood')
或者
coreml_model = coremltools.converters.keras.convert(model, input_names=['red','green','blue'], output_names=['isWood'])
没有区别。
有任何想法吗?
我认为问题在于您的 Keras 模型只有一个输入(具有 3 个功能),因此您只能在coremltools.converters.keras.convert
给出一个输入名称。
尝试将LINE 1
替换为以下内容:
coreml_model = coremltools.converters.keras.convert(model, 'rgb-color', 'isWood')
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