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.
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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 - last edited on 07-20-2026 01:47 PM by Content Cleaner
There are mainly three types of interpolation used in IMAQ Find Edge VI or any other edge vi.
- From VI help https://www.ni.com/docs/en-US/bundle/ni-vision-labview-api-ref/page/imaqvision/imaq_find_edge.html
Rounds to the nearest integral edge location
Uses bilinear interpolation to compute the edge location
(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 https://www.ni.com/docs/en-US/bundle/ni-vision/page/concepts-17.html
-And this wiki on Bilinear interpolation can help https://en.wikipedia.org/wiki/Bilinear_interpolation#Application_in_image_processing
