[Insight-users] Problem of ImageToVTKImageFilter, when displaying 2 images

[ask ITK]

Problem occurs when I want to use itkImageToVTKImageFilter to display
2 different images.

I want to display to different image with the VTK viewer..
of coz I think it requires 2 different viewers and 2 different interactors.
So I created 2 for both of them.

Loading the first image is fine, but after I load teh second image,
the first image also become the second image!
I don't know how to solve this problem...so please help...

following error is displayed:

ERROR: In D:\Research\VTK\src\Filtering\vtkStreamingDemandDrivenPipeline.cxx,
line 643
vtkImageImportExecutive (020D8F78): The update extent specified in the
information for output port 0 on algorithm vtkImageImport(020D8AD0) is
0 142 0 167 0 0, which is outside the whole extent 0 141 0 166 0 0.

I attached my code below, very short, can I can run the program
smoothly except the stated error. Please help, thanks!
=======================================================

void ApplicationCore::callViewer(ImagePtr image, int choice)
{
	m_itkvtkconnector[choice]->SetInput( image );

	m_ImageViewer[choice]->SetupInteractor( m_renderWindowInteractor[choice]);
	m_ImageViewer[choice]->SetInput( m_itkvtkconnector[choice]->GetOutput() );
	m_ImageViewer[choice]->SetSize(image->GetLargestPossibleRegion().GetSize()[0],image->GetLargestPossibleRegion().GetSize()[1]);
	m_ImageViewer[choice]->Render();
	m_ImageViewer[choice]->SetColorWindow( 255);
	m_ImageViewer[choice]->SetColorLevel( 128);
//	m_renderWindowInteractor[choice]->Start();
}
=======================================================