Re: [Gdcm2] GetPixelRepresentation

[Mathieu M. <mat...@gm...>]

gdcm.Reader & gdcm.ImageReader both return GetFile() so both should be fine.
gdcm.Reader succeed even if DICOM file is not an image, that's the difference.

-M

On Mon, May 19, 2008 at 3:52 PM, Paulo Henrique Junqueira Amorim
<pau...@gm...> wrote:
> The  sf.SetFile(file) is read from gdcm.ImageReader ?
>
>
>
> 2008/5/19 Mathieu Malaterre <mat...@gm...>:
>>
>> Hi Paulo,
>>
>>  you need to use the StringFilter filter. Tag: 0x0028, 0x0103 is not
>> ASCII, it is a binary value and is loaded as such into memory. To make
>> is easy for human to read value, one can use the StringFilter for this
>> case:
>>
>>  sf = gdcm.StringFilter()
>>  sf.SetFile(file) # extremely important
>>  res = sf.ToStringPair( gdcm.Tag(0x0028, 0x0103) )
>>  print res[1]
>>
>> As a side note you can also have a look at TestStringFilter.py
>>
>> HTH
>>
>> On Mon, May 19, 2008 at 3:30 PM, Paulo Henrique Junqueira Amorim
>> <pau...@gm...> wrote:
>> > Hi Mathieu,
>> >
>> > My problem is Pixel Representation gdcm return 2.
>> >
>> > I tried on several dicom. Other programs return 1 and 0 to same dicom.
>> >
>> > Some definitions say it's # 1 signed, 0 unsigned
>> >
>> > as I can get 0 or 1?
>> >
>> >
>> > class ivMedicalImageParser():
>> >
>> >     def __init__(self):
>> >         self.file_name = None
>> >         self.read_dicom = vtkgdcm.vtkGDCMImageReader()
>> >
>> >     def SetFileName(self, file_name):
>> >         self.file_name = file_name
>> >         self.read_dicom_gdcm = gdcm.ImageReader()
>> >         self.read_dicom_gdcm.SetFileName(file_name)
>> >
>> >         if (self.read_dicom_gdcm.Read()):
>> >             self.read_dicom.SetFileName(file_name)
>> >             self.read_dicom.Update()
>> >         else:
>> >             self.file_name = None
>> >
>> >     def GetPixelRepresentation(self):
>> >         tag = gdcm.Tag(0x0028, 0x0103)
>> >         ds = self.read_dicom_gdcm.GetFile().GetDataSet()
>> >         if ds.FindDataElement(tag):
>> >             inf = str(ds.GetDataElement(tag).GetValue())
>> >             if (inf):
>> >                 return inf.split("Loaded:")[1]
>> >             else:
>> >                 return None
>> >
>> >
>> >
>>
>>
>>
>> --
>> Mathieu
>
>



-- 
Mathieu