DICOM 图像读取不正确

Question

我有一个 dicom 文件，我可以从中读取图像。然而，我阅读的图像有不正确的色图。理想情况下，图像应如下所示：

然而，下面的代码只给了我

如果我只取红色部分，我会得到下面的图像，这是不正确的，在我尝试过的任何颜色图中都无法调整到理想的结果。

或

root = tk.Tk()
root.withdraw()
path = filedialog.askopenfilename()
ds = dicom.dcmread(path, force = True) # reads a file data set
video = ds.pixel_array #reads a sequence of RGB images
plt.imsave(some_path, video[0], format='png') #gives image [2]

我做错了什么？

Answer 1

这真的很像 YCbCr data, is the Photometric Interpretation something like YBR_FULL? If so then as mentioned in the documentation you need to apply a colour space conversion，在 pydicom 中是：

from pydicom import dcmread
from pydicom.pixel_data_handlers import convert_color_space

ds = dcmread(...)
rgb = convert_color_space(ds.pixel_array, "YBR_FULL", "RGB")

DICOM 图像读取不正确

DICOM image is not read correctly

python

matplotlib

dicom

pydicom