Hi,<br><br>I'm new to VTK and I'm trying to use vtkImageViewer2 for the following purpose: The ImageViewer is displaying slices of volume data and in every Slice I'd like to mark/highlight a specific region. Can I use a second image as an (transparent) overlay image? I found out, that I can work with layers in the vtkRenderWindow, but I can't simply add Images to the RenderWindow like I used to do with the ImageViewer. So, maybe someone has an idea.
<br><br>There's a second question: The vtkImageViewer comes with automatic window/level adjustment allocated to the left mouse button. I tried hard to find a way to switch it off, as I don't need it. Do I have to create a whole new ImageActor for that?
<br><br>Thank you for your help!<br>Best regards,<br>Sebastian<br><br>