[vtkusers] [slicer-devel] Threshold setting

[Jean-Christophe Fillion-Robin]

Hi Marco,

Great to see you are making progress.

While the members of the ITK, VTK and Slicer communities would be more than
happy to help you, I think sending an email to all of them will have the
opposite effect.

Instead, to get meaningful help, before sending an email I would suggest
you consider the following checklist. I use it myself everyday.

 [ ] Did I check the documentation, examples or existing tests of the
related projects ?


 [ ] Did I search the existing mailing archives and/or stack overflow for
similar question ? It is not uncommon that other users asked a similar
question. Using a search engine should be helpful here.


 [ ] Did I check FAQ  (Frequently Asked Questions) sections of the projects
?  For example, on the Slicer wiki there are a user and developer FAQs.


 [ ] Am I providing enough context for others to understand and reproduce
the problem. Reading the SSCCE guidlines [Short, Self Contained, Correct
(Compilable), Example]  available on http://sscce.org/ is always a good
thing.


 [ ] Is my question specific to a given library (ITK, VTK) or application
(Slicer). For example, if the question is about the use of
vtkImageThreshold filter, the VTK  user list is probably a good place to
ask questions.


 [ ] Did I re-read my email before sending it.  Considering your email will
be read by hundreds (or may be thousands) of individuals, re-reading before
sending is always good.


That said, let us know if you have any questions,

Thanks,
Jc



On Tue, Sep 22, 2015 at 12:39 PM, Marco Dev <marco.dev.open at gmail.com>
wrote:

> HI,
>  I use double scaler type from input but work with (Black or white )
> threshold setting   My code is follow bellow
> int apply = 0;
>  imageThreshold->SetInputConnection(firstColorMapper->GetOutputPort());
>   imageThreshold->ReplaceInOn();
>   imageThreshold->SetInValue(255);
>  imageThreshold->ReplaceOutOn();
>   imageThreshold->SetOutValue(255);
>
> imageThreshold->SetOutputScalarType(fixedConnector->GetOutput()->GetScalarType());
> //double
>   imageThreshold->ThresholdBetween(VTK_SHORT_MIN, VTK_SHORT_MAX);
>   imageThreshold->ThresholdBetween( -3495, 2161 );
>   imageThreshold->SetOutValue(apply ? 0 : 255);
>   imageThreshold->Update();
>
>
>
>   double low   = (!enableThreshold) ? range[0] : lowThreshold;
>   double upper = (!enableThreshold) ? range[1] : upperThreshold;
>
>
>     vtkSmartPointer<vtkImageThreshold> imageThreshold2 =
>     vtkSmartPointer<vtkImageThreshold>::New();
>  // imageThreshold2->SetInputData(mImage);
>
> imageThreshold2->SetInputConnection(secondColorMapper->GetOutputPort());
>   imageThreshold2->ReplaceInOn();
>    imageThreshold2->SetInValue(255);
>   imageThreshold2->ReplaceOutOn();
>   imageThreshold2->SetOutValue(255);
>  imageThreshold2->SetOutputScalarType(fixedConnector->GetOutput()->GetScalarType());
> //double
>  imageThreshold2->ThresholdBetween(VTK_SHORT_MIN, VTK_SHORT_MAX);
>   imageThreshold2->ThresholdBetween( 160, 6088 );
>   imageThreshold2->SetOutValue(apply ? 0 : 255);
>   imageThreshold2->Update();
>
>
>     Thanks
>
>
>
>
>
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