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我正在尝试将.npy图像转换为nii.gz图像，即使我正确遵循了说明，我也遇到了各种问题。

这是我正在使用的代码：

import numpy as np
import nibabel as nib

file_dir = "D:/teste volumes slicer/"
fileNPY1 = "teste01.npy"
img_array1 = np.load(file_dir + fileNPY1)
print(img_array1.shape)
print(img_array1.dtype)

normal_array = "D:/teste volumes slicer/teste01.npy"
print ("done")
nifti_file = nib.Nifti1Image(normal_array, np.eye(4))

关于图像：（332、360、360）float64（这是我们打印形状和 dtype 时得到的） https://ibb.co/mRyTrw7 - 显示错误的图像和图像信息

The error message: 
Traceback (most recent call last):
  File "d:\teste volumes slicer\conversor.py", line 16, in <module>
    nifti_file = nib.Nifti1Image(normal_array, np.eye(4))
  File "C:\Python39\lib\site-packages\nibabel\nifti1.py", line 1756, in __init__
    super(Nifti1Pair, self).__init__(dataobj,
  File "C:\Python39\lib\site-packages\nibabel\analyze.py", line 918, in __init__
    super(AnalyzeImage, self).__init__(
  File "C:\Python39\lib\site-packages\nibabel\spatialimages.py", line 469, in __init__
    self.update_header()
  File "C:\Python39\lib\site-packages\nibabel\nifti1.py", line 2032, in update_header
    super(Nifti1Image, self).update_header()
  File "C:\Python39\lib\site-packages\nibabel\nifti1.py", line 1795, in update_header
    super(Nifti1Pair, self).update_header()
  File "C:\Python39\lib\site-packages\nibabel\spatialimages.py", line 491, in update_header
    shape = self._dataobj.shape
AttributeError: 'str' object has no attribute 'shape'
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1 回答 1

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您的代码的问题不是传递您的 Numpy 数组（您的图像），而是将图像的路径传递给Nifti1Image函数。

这是转换它的正确方法：

import numpy as np
import nibabel as nib

file_dir = "D:/teste volumes slicer/"
fileNPY1 = "teste01.npy"
img_array1 = np.load(file_dir + fileNPY1) 
nifti_file = nib.Nifti1Image(img_array1 , np.eye(4))
于 2021-12-10T18:48:33.883 回答