如何在Windows中使用DCMTK将DICOM图像转换为8位PNG？

Question

我想在Windows中使用DCMTK将50个DICOM图像转换为8位PNG图像。我在命令行中输入以下内容并得到错误。

dcmj2pnm --write-png 1.dcm 1.png

错误是：

E: can't change to unencapsulated representation for pixel data
E: can't determine 'PhotometricInterpretation' of decompressed image
E: mandatory attribute 'PhotometricInterpretation' is missing or can't 
be determined
F: Missing attribute

任何想法如何编写正确的命令行参数？预先谢谢你。