path = "C:\Users\Administrator\Desktop\LiTS2017" ^ SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape
时间: 2023-07-10 09:07:55 浏览: 44
这个错误是因为路径中的反斜杠(\)被认为是 Unicode 转义字符。有多种方法可以解决这个问题:
1. 将所有的反斜杠都改为正斜杠(/),例如:
path = "C:/Users/Administrator/Desktop/LiTS2017"
2. 在路径字符串前面添加一个原始字符串标识符(r),例如:
path = r"C:\Users\Administrator\Desktop\LiTS2017"
3. 在路径字符串中使用双反斜杠(\\),例如:
path = "C:\\Users\\Administrator\\Desktop\\LiTS2017"
相关问题
FileNotFoundError: [WinError 3] 系统找不到指定的路径。: 'C:/Users/Administrator/Desktop/LiTS2017segmentation',修改错误,给出完整代码
好的,根据你提供的错误信息,这个错误是因为系统找不到指定的路径导致的。请确保你的文件路径存在并正确输入。以下是修改后的代码:
```python
import os
import numpy as np
import nibabel as nib
from skimage.transform import resize
path = 'C:/Users/Administrator/Desktop/LiTS2017segmentation'
save_path = 'C:/Users/Administrator/Desktop/LiTS2017segmentation_resized'
if not os.path.exists(save_path):
os.mkdir(save_path)
for folder in os.listdir(path):
if os.path.isdir(os.path.join(path, folder)):
print('Processing folder:', folder)
folder_path = os.path.join(path, folder)
save_folder_path = os.path.join(save_path, folder)
if not os.path.exists(save_folder_path):
os.mkdir(save_folder_path)
for file in os.listdir(folder_path):
if 'segmentation' in file:
continue
else:
img_path = os.path.join(folder_path, file)
img = nib.load(img_path)
img_data = img.get_fdata()
img_data_resized = resize(img_data, (512, 512, img_data.shape[-1]), anti_aliasing=True)
save_img_path = os.path.join(save_folder_path, file)
nib.save(nib.Nifti1Image(img_data_resized, img.affine), save_img_path)
```
在这个代码中,我们首先指定了原始数据的路径(`path`)和缩放后数据的保存路径(`save_path`)。然后,我们遍历`path`中的每个文件夹,检查其中是否有子文件夹。如果有,我们将跳过这个子文件夹。我们将使用`os.path.join`函数来构建每个文件/文件夹的完整路径。然后,我们遍历每个文件夹中的所有文件。如果文件名中包含`'segmentation'`,我们将跳过该文件。否则,我们将加载NIfTI格式的图像数据,并使用`skimage.transform.resize`函数将其缩放到512x512x(原始z轴上的切片数)大小。最后,我们在`save_folder_path`中保存缩放后的图像。
此代码import os import numpy as np import nibabel as nib import imageio from PIL import Image def read_niifile(niifilepath): # 读取niifile文件 img = nib.load(niifilepath) # 提取niifile文件 img_fdata = img.get_fdata(dtype='float32') return img_fdata def save_fig(niifilepath, savepath, num, name): # 保存为图片 name = name.split('-')[1] filepath_seg = niifilepath + "segmentation\\" + "segmentation-" + name filepath_vol = niifilepath + "volume\\" + "volume-" + name savepath_seg = savepath + "segmentation\\" savepath_vol = savepath + "volume\\" if not os.path.exists(savepath_seg): os.makedirs(savepath_seg) if not os.path.exists(savepath_vol): os.makedirs(savepath_vol) fdata_vol = read_niifile(filepath_vol) fdata_seg = read_niifile(filepath_seg) (x, y, z) = fdata_seg.shape total = x * y for k in range(z): silce_seg = fdata_seg[:, :, k] if silce_seg.max() == 0: continue else: silce_seg = (silce_seg - silce_seg.min()) / (silce_seg.max() - silce_seg.min()) * 255 silce_seg = np.uint8(Image.fromarray(silce_seg).convert('L')) silce_seg = cv2.threshold(silce_seg, 1, 255, cv2.THRESH_BINARY)[1] if (np.sum(silce_seg == 255) / total) > 0.015: silce_vol = fdata_vol[:, :, k] silce_vol = (silce_vol - silce_vol.min()) / (silce_vol.max() - silce_vol.min()) * 255 silce_vol = np.uint8(Image.fromarray(silce_vol).convert('L')) imageio.imwrite(os.path.join(savepath_seg, '{}.png'.format(num)), silce_seg) imageio.imwrite(os.path.join(savepath_vol, '{}.png'.format(num)), silce_vol) num += 1 return num if __name__ == '__main__': path = 'C:\Users\Administrator\Desktop\LiTS2017' savepath = 'C:\Users\Administrator\Desktop\2D-LiTS2017' filenames = os.listdir(path + "segmentation") num = 0 for filename in filenames: num = save_fig(path, savepath, num, filename)出现SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape,请修改它,给出完整代码
你的代码中出现了unicode编码错误,可能是由于路径中反斜杠被解释为转义字符引起的。解决方法是将路径中的反斜杠改为双反斜杠或正斜杠。以下是修改后的完整代码:
```python
import os
import numpy as np
import nibabel as nib
import imageio
from PIL import Image
def read_niifile(niifilepath):
# 读取niifile文件
img = nib.load(niifilepath)
# 提取niifile文件
img_fdata = img.get_fdata(dtype='float32')
return img_fdata
def save_fig(niifilepath, savepath, num, name):
# 保存为图片
name = name.split('-')[1]
filepath_seg = niifilepath + "segmentation\\" + "segmentation-" + name
filepath_vol = niifilepath + "volume\\" + "volume-" + name
savepath_seg = savepath + "segmentation\\"
savepath_vol = savepath + "volume\\"
if not os.path.exists(savepath_seg):
os.makedirs(savepath_seg)
if not os.path.exists(savepath_vol):
os.makedirs(savepath_vol)
fdata_vol = read_niifile(filepath_vol)
fdata_seg = read_niifile(filepath_seg)
(x, y, z) = fdata_seg.shape
total = x * y
for k in range(z):
silce_seg = fdata_seg[:, :, k]
if silce_seg.max() == 0:
continue
else:
silce_seg = (silce_seg - silce_seg.min()) / (silce_seg.max() - silce_seg.min()) * 255
silce_seg = np.uint8(Image.fromarray(silce_seg).convert('L'))
silce_seg = cv2.threshold(silce_seg, 1, 255, cv2.THRESH_BINARY)[1]
if (np.sum(silce_seg == 255) / total) > 0.015:
silce_vol = fdata_vol[:, :, k]
silce_vol = (silce_vol - silce_vol.min()) / (silce_vol.max() - silce_vol.min()) * 255
silce_vol = np.uint8(Image.fromarray(silce_vol).convert('L'))
imageio.imwrite(os.path.join(savepath_seg, '{}.png'.format(num)), silce_seg)
imageio.imwrite(os.path.join(savepath_vol, '{}.png'.format(num)), silce_vol)
num += 1
return num
if __name__ == '__main__':
path = r'C:\Users\Administrator\Desktop\LiTS2017'
savepath = r'C:\Users\Administrator\Desktop\2D-LiTS2017'
filenames = os.listdir(path + "segmentation")
num = 0
for filename in filenames:
num = save_fig(path, savepath, num, filename)
```
相关推荐
![txt](https://img-home.csdnimg.cn/images/20210720083642.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![txt](https://img-home.csdnimg.cn/images/20210720083642.png)
![7z](https://img-home.csdnimg.cn/images/20210720083312.png)
![7z](https://img-home.csdnimg.cn/images/20210720083312.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)