07-27-2016 11:48 PM
In Edge detection VI has the interpolation is mentioned. I want know the interpolation types and how it will work.If anybody knows please explain.
Solved! Go to Solution.
07-28-2016 07:09 AM
which kind of edge detection you means?
based on their algorithm that most of them use averaging data you can get subpixel data for edge
07-28-2016 10:22 AM
There are mainly three types of interpolation used in IMAQ Find Edge VI or any other edge vi.
- From VI help http://zone.ni.com/reference/en-XX/help/370281AA-01/imaqvision/imaq_find_edge/
Zero Order (0) | Rounds to the nearest integral edge location |
Bilinear (1) | Uses bilinear interpolation to compute the edge location |
Bilinear Fixed (4) | (Default) Uses the fixed-point computation of bilinear interpolation to determine the edge location |
-Check the SubPixel Accuracy Topic for how the interpolation works in here http://zone.ni.com/reference/en-XX/help/372916T-01/nivisionconcepts/edge_detection_concepts/
-And this wiki on Bilinear interpolation can help https://en.wikipedia.org/wiki/Bilinear_interpolation#Application_in_image_processing