[英]Problems with npy to nii.gz conversion
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 - 显示错误和图像信息的图像
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'
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
function。
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))
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