ImportError：图像转换需要 SciPy。安装 SciPy答案

【问题标题】：ImportError: Image transformations require SciPy. Install SciPyImportError：图像转换需要 SciPy。安装 SciPy
【发布时间】：2021-10-23 03:55:48
【问题描述】：

我正在使用迁移学习通过 imagedatagenerator 提取医学图像的特征。我使用的是枕头版本 2.8.0，图像是单通道的，是 jpeg 格式的。 SciPy 1.5.4 版显示安装在我的 IDE 上。代码如下：

import os, glob
import numpy as np
import matplotlib.pyplot as plt
import cv2
import nibabel as nib

import tensorflow as tf
from tensorflow.keras.preprocessing.image import ImageDataGenerator, array_to_img, img_to_array, load_img
from tensorflow import keras
from keras.models import load_model
from keras import backend as K
from keras.applications.vgg16 import VGG16

import os
import cv2
from PIL import Image
import numpy as np
import scipy
from matplotlib import pyplot as plt


batch_size = 64
train_datagen = ImageDataGenerator(rescale=1./255)
train_generator = train_datagen.flow_from_directory(
        '/home/idu/Desktop/COV19D/train/', 
        target_size=(512, 512),
        batch_size=batch_size,
        classes = ['covid','non-covid'],
        class_mode='binary')

迁移学习模型如下：

SIZE = 512
VGG_model = VGG16(include_top=False, weights=None, input_shape=(SIZE, SIZE, 1))
for layer in VGG_model.layers:
    layer.trainable = False 

feature_extractor=VGG_model.predict(train_generator)

它曾经抛出错误__array__() takes 1 positional argument but 2 were given? 但是通过将枕头版本降级到上述版本来解决这个问题。然而，现在最后的代码抛出了错误：

Traceback (most recent call last):

  File "<ipython-input-120-b9bad68819ec>", line 1, in <module>
    feature_extractor=VGG_model.predict(train_generator)

  File "/home/idu/.local/lib/python3.6/site-packages/keras/engine/training.py", line 1681, in predict
    steps_per_execution=self._steps_per_execution)

  File "/home/idu/.local/lib/python3.6/site-packages/keras/engine/data_adapter.py", line 1348, in get_data_handler
    return DataHandler(*args, **kwargs)

  File "/home/idu/.local/lib/python3.6/site-packages/keras/engine/data_adapter.py", line 1150, in __init__
    model=model)

  File "/home/idu/.local/lib/python3.6/site-packages/keras/engine/data_adapter.py", line 793, in __init__
    peek, x = self._peek_and_restore(x)

  File "/home/idu/.local/lib/python3.6/site-packages/keras/engine/data_adapter.py", line 850, in _peek_and_restore
    peek = next(x)

  File "/home/idu/.local/lib/python3.6/site-packages/keras_preprocessing/image/iterator.py", line 104, in __next__
    return self.next(*args, **kwargs)

  File "/home/idu/.local/lib/python3.6/site-packages/keras_preprocessing/image/iterator.py", line 116, in next
    return self._get_batches_of_transformed_samples(index_array)

  File "/home/idu/.local/lib/python3.6/site-packages/keras_preprocessing/image/iterator.py", line 238, in _get_batches_of_transformed_samples
    x = self.image_data_generator.apply_transform(x, params)

  File "/home/idu/.local/lib/python3.6/site-packages/keras_preprocessing/image/image_data_generator.py", line 874, in apply_transform
    order=self.interpolation_order)

  File "/home/idu/.local/lib/python3.6/site-packages/keras_preprocessing/image/affine_transformations.py", line 281, in apply_affine_transform
    raise ImportError('Image transformations require SciPy. '

ImportError: Image transformations require SciPy. Install SciPy.

我已经在我的 IDE 上安装并检查了 SciPy 版本，它似乎没问题，版本 '1.5.4'。我该如何解决这个错误？谢谢。

【问题讨论】：

你导入了吗？请在此处发布您的完整代码
是的。我已经导入了 scipy 库。现在可以在上面看到完整的代码。谢谢！
升级枕头然后显示错误行，我认为scipy需要更新枕头
这个错误，当枕头是最新的，可以在这里看到stackoverflow.com/questions/68880452/…。可以在此处查看带有错误的完整代码stackoverflow.com/questions/68291947/…。感谢您的宝贵时间！

标签： python arrays image image-processing arguments

【解决方案1】：

这个问题通常是因为TensorFlow版本。我相信您当前的版本必须是 2.6 或类似的版本，如果您安装 tensorflow==2.4，此问题将得到解决。

【讨论】：