Keras:更改的ImageDataGenerator给出了错误"__init __()得到了意外的关键字参数". [英] Keras: Altered ImageDataGenerator gives error "__init__() got an unexpected keyword argument"

问题描述

我正在使用keras=2.3.1，我想使用自己的zca_whitening版本.为此，我直接对keras文件/home/user/.local/lib/python3.6/site-packages/keras_preprocessing/image/image_data_generator.py中的ImageDataGenerator类进行了更改.该文件(包括我的更改)是一个.可以看到这里.没有问题，只要nn_script.py使用默认的keras增强，例如:

I am using keras=2.3.1 and I wanted to use my own version of zca_whitening. For that, I made changes directly into the ImageDataGenerator class in the keras file /home/user/.local/lib/python3.6/site-packages/keras_preprocessing/image/image_data_generator.py. The file, including my changes is this one. My neural network file nn_script.py that uses this altered image_data_generator.py can be seen here. There are no problems, as long as nn_script.py uses the default keras augmentaions like:

train_datagen = ImageDataGenerator(
    rotation_range=30,
    shear_range=0.2,
    samplewise_center=True, samplewise_std_normalization=True) 

但是，如果我决定以这种方式打开名为zca_whitening_fast的自定义版本的zca_whitening

But if I decide to switch on my custom version of zca_whitening called zca_whitening_fast in this way

train_datagen = ImageDataGenerator(
    rotation_range=30,
    shear_range=0.2,
    samplewise_center=True, samplewise_std_normalization=True,
    zca_whitening_fast=True) 

我收到错误消息

Traceback (most recent call last):
  File "nn_script.py", line 55
TypeError: __init__() got an unexpected keyword argument 'zca_whitening_fast'

您可以通过将您的image_data_generator.py文件替换为我上面发布的文件，并尝试使用选项zca_whitening_fast=True创建一个生成器来重现我的错误消息.

You can reproduce my error message by substituting your image_data_generator.py file with the one I posted above and trying to create a generator with the option zca_whitening_fast=True.

首先，我认为问题是，我忘记了在文件image_data_generator.py中的def __init__()中包含zca_whitening_fast，但是它存在，可以检查.我还尝试删除__pycache__文件夹，因为我认为此文件夹中正在执行一些较旧的文件，但是出现了相同的错误.现在，我想知道错误消息是否来自不同文件中的__init__()，而不是image_data_generator.py中的.我认为解决方案很明显，我可能需要在keras预处理文件夹中的另一个文件中进行更改，但我不知道该更改.我认为问题不在于我的keras版本太旧，而且由于与我的显卡兼容的原因，我无法升级keras.

First I thought the problem is, that I have forgotten to include zca_whitening_fast in def __init__() in the file image_data_generator.py, but it is there, as you can check. I also tried deleting the __pycache__ folder, because I thought, that some older files are getting executed in this folder, but the same error appeared. Now I wonder if the error message comes from an __init__() that is in a different file, not in image_data_generator.py. I think the solution is something obvious, I probably need to make a change in another file in the keras preprocessing folder, but I don't know which. I don't think the problem is because my keras version is old and because of compatibility reasons with my graphic card I can't upgrade keras.

我为什么收到此错误消息的任何想法?谢谢

Any ideas why I get this error message? Thanks

推荐答案

您修改了keras_preprocessing程序包中的文件，但是您可能正在导入keras.preprocessing，这是一个不同的程序包.很好，keras.preprocessing会将所有呼叫转发到keras_preprocessing.

You modified the files in the keras_preprocessing package, but you are probably importing keras.preprocessing, which is a different package. This is fine, keras.preprocessing just forwards all calls to keras_preprocessing.

因此，您需要对keras包中的keras/preprocessing/image.py文件进行修改，如下所示:

So what you need to do is to also make your modifications to the keras/preprocessing/image.py files inside the keras package, as shown here.

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