我有一个DICOM图像的数据，我想将dicom图像转换为png或jpg格式。但是如何使用for循环一次转换多个文件夹呢？

Question

我有DICOM图像的数据，我想将dicom图像转换为png或jpg格式。但是，我需要使用for循环一次转换多个文件夹中的图像。以下是我到目前为止所做的工作：

import pydicom as dicom
import cv2 

# specify your image path
image_path = 'Data/LungSegmentation/NSCLC-Radiomics/LUNG1-001/09-18-2008-StudyID-69331/0.000000-82046/1-001.dcm'
ds = dicom.dcmread(image_path)

pixel_array_numpy = ds.pixel_array

image_format = '.jpg' # or '.png'
image_path = image_path.replace('.dcm', image_format)

cv2.imwrite(image_path, pixel_array_numpy)

#show image.....
plt.imshow(ds.pixel_array,cmap ='gray',vmin=0,vmax=255)

Answer 1

使用glob之类的python模块遍历文件和文件夹。下面是一个小例子：

import glob

folders = glob.glob("PATH_CONTAINING_YOUR_FOLDERS")

for folder in folders:
    files = glob.glob(folder+'\*.dcm') # pick only dicom files
    for file in files:
        DO_YOUR_STUFF_HERE(file)

Answer 2

我已经构建了一个package来将dicom文件转换成jpg/png/bmp，你只需要pip install dicom2jpg然后使用

import dicom2jpg

dicom_dir = "/Users/user/Desktop/dir_a"
export_location = "/Users/user/Desktop/dir_b"

# convert all DICOM files in dicom_dir folder to jpg format
dicom2jpg.dicom2jpg(dicom_dir, export_location)

# convert all DICOM files in dicom_dir folder to png format
dicom2jpg.dicom2png(dicom_dir, export_location)  

希望能有所帮助