[vtkusers] overlaying 2D images and rectangles
Alexis H. Rivera-Rios
ahrivera at yahoo.com
Sat Feb 26 21:33:09 EST 2005
I will appreciate if someone can tell me an approach
to do the following:
I want to visualize the output of an image processing
algorithm which detects objets on an image. After the
algorithm runs I want to draw the 2D gray scale input
image and colored rectangles around the detections.
Using vtkImageData, I'm able to draw the image. And
using vtkCell and vtkPoints I can draw rectangles.
But, if I use vtkImageViewer2, my rectangles and the
drawing are in different coordinate systems. So I
can't center a rectangle around the detection
coordinate (the detection coordinate is in pixels).
Using vtkImageViewer seems to do the trick except when
my images are small ... then I can't resize them (or
don't know how to).
Has anybody done something similar? Any ideas on how
to approach this problem?
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