[Insight-users] please help with modifing pipeline

[Renaud Isabelle]

Hi,
 
I would like to modify my pipeline by inserting a new filter. Actually, this new filter will be an histogram equalization image filter applied on my displayed image but only if the user clicks on a button. 

 
For the moment, I have: 
rescaleFilter -> SetInput( image_initiale );
 
But, only if user desires, an histogram equalization filter will be introduced such as:
 
ON_BN_CLICKED:
{
 WorkImageType::Pointer oldImage = rescaleFilter->GetOutput();
oldImage -> DisconnectPipeline(); //image displayed before any histogram equalization
 
 histogramEqualizationFilter->SetInput( oldImage );
 rescaleFilter->SetInput( histogramEqualizationFilter->GetOutput() );//new image displayed
 rescaleFilter->Update();  
 }
     
Unhappily, this doesn't work: once button is clicked, histogramEqualizationFilter's output is the same as before = oldImage. I really don't understand. I thought disconnectPipeline would be sufficient.
 
What do I miss?
 
Isabelle
 
 

		
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