ImageDataGenerator没有定义(ImageDataGenerator is not defined)

 我是Keras和DL的新手。 我从keras文档中获得这些代码。 想在我的系统上运行它。 
 
train_datagen = ImageDataGenerator(
    rescale=1./255,
    shear_range=0.2,
    zoom_range=0.2,
    horizontal_flip=True)

test_datagen = ImageDataGenerator(rescale=1./255)

 train_generator = train_datagen.flow_from_directory('C:\\Users\\kashy\\Desktop\\Data\\train',target_size=(200,200),batch_size=batch_size,class_mode='binary')

 validation_generator = test_datagen.flow_from_directory('C:\\Users\\kashy\\Desktop\\Data\\validation',target_size=(200,200),batch_size=batch_size,class_mode='binary')
 
 这是我正在处理的代码片段.. 
 
 当我试图在我的系统上运行这个...我得到以下错误 
 
Traceback (most recent call last):
 File "C:\Users\kashy\Desktop\trial1.py", line 29, in <module>
train_datagen = ImageDataGenerator(
NameError: name 'ImageDataGenerator' is not defined
 
 有人可以帮助我吗？ 
 
 谢谢 ！！！ 

I am new to Keras and DL. I got this code from a keras document. wanted to run it on my system.
 
train_datagen = ImageDataGenerator(
    rescale=1./255,
    shear_range=0.2,
    zoom_range=0.2,
    horizontal_flip=True)

test_datagen = ImageDataGenerator(rescale=1./255)

 train_generator = train_datagen.flow_from_directory('C:\\Users\\kashy\\Desktop\\Data\\train',target_size=(200,200),batch_size=batch_size,class_mode='binary')

 validation_generator = test_datagen.flow_from_directory('C:\\Users\\kashy\\Desktop\\Data\\validation',target_size=(200,200),batch_size=batch_size,class_mode='binary')
 
this is snippet of the code i was working on..
 
when i tried to run this on my system... i got the following error
 
Traceback (most recent call last):
 File "C:\Users\kashy\Desktop\trial1.py", line 29, in <module>
train_datagen = ImageDataGenerator(
NameError: name 'ImageDataGenerator' is not defined
 
can somebody help me ??
 
thanks !!!

原文：https://stackoverflow.com/questions/48036485