[ITK] reading private tags returns weird strings

Dženan Zukić dzenanz at gmail.com
Wed Aug 10 10:04:42 EDT 2016


In fact, this decodes
<http://www.opinionatedgeek.com/dotnet/tools/base64decode/> to 00 80 93 43
- four bytes given here in hexadecimal notation. The decoder you linked
does not seem to work correctly. I don't know why you expect 295 there.

On Wed, Aug 10, 2016 at 9:58 AM, <Francois.GIRINON at ensam.eu> wrote:

> Le 10/08/2016 à 14:35, Dženan Zukić a écrit :
>
> Hi Francois,
>
> is this base64 encoded? You should perhaps do base64 decode on the return
> string to get the binary value.
>
> Regards,
> Dženan
>
> On Wed, Aug 10, 2016 at 7:15 AM, <Francois.GIRINON at ensam.eu> wrote:
>
>> Hi,
>>
>> I'm trying to read private dicom tags using :
>>
>>     ImageIOType::Pointer dicomIO = ImageIOType::New();
>>     ...
>>     dicomIO->SetLoadPrivateTags(true);
>>     std::string offsetFromBottomStr;
>>
>>     std::string offsetFromBottom = "0863|1041";
>>     dicomIO->GetValueFromTag(offsetFromBottom, offsetFromBottomStr);
>>
>> The value *offsetFromBottomStr *returned is *AICTQw==*
>> How does it come and how can I fix this ?
>>
>> Thank you,
>> François.
>>
>> _______________________________________________
>> Community mailing list
>> Community at itk.org
>> http://public.kitware.com/mailman/listinfo/community
>>
>>
> Thanks for your answer. You might be right, they say here
> <http://public.kitware.com/pipermail/community/2016-May/011426.html>
> *private tags and encodes the with Base64 into strings. *Unfortunately, *AICTQw==
> *should correspond to 295 and according to https://www.base64decode.org/,
> *AICTQw==* is a C.
> Besides, I don't understand how does itksysBase64_Decode works (I'm not
> sure I should use this method too).
>
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