[Insight-users] Rescale Dicom images

[Mathieu Malaterre]

Mohamed,

	No you don't need to use any kind of filter. The ImageIO (GDCMImageIO 
in this case) is doing the rescaling for you. So you do not need to (and 
should not!). You can grep the code and look for a function in 
itkGDCMImageIO.cxx:


// Internal function to rescale pixel according to Rescale Slope/Intercept
template<class TBuffer, class TSource>
void RescaleFunction(TBuffer* buffer, TSource *source,
                      double slope, double intercept, size_t size)

	This function is being called on any 2d frame, therefore even if you 
rescale and slope are changing within the same series, the GDCMImageIO 
will do the work for you to rescale properly.

	Please specify the release version of ITK you are using. If possible 
send me a slice that demonstrate the the issue you are having so that I 
can reproduce here on my computer.

Thanks,
Mathieu
Ps: When using ITK, you should really send your question here instead of 
the general dicom newsgroup.

Sylvain Jaume wrote:
> Hi Mohamed,
> 
> You may use itkMinimumMaximumImageCalculator
> 
> Sylvain
> 
> Mohamed Louizi wrote:
>> Hello,
>>
>> thanks for the response.
>>
>> With itkRescaleIntensityImageFilter i have to set the
>> min and max value.
>>
>> Which values should these params have?
>>
>> (sorry for the stupid question, but i´m newbie in
>> image processing fied)
>>
>> Thanks
>>  
>>
>>
>>
>>
>>        
>> ___________________________________________________________ Telefonate 
>> ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de
>> _______________________________________________
>> Insight-users mailing list
>> Insight-users at itk.org
>> http://www.itk.org/mailman/listinfo/insight-users
>>
>>   
> _______________________________________________
> Insight-users mailing list
> Insight-users at itk.org
> http://www.itk.org/mailman/listinfo/insight-users
>