I'm looking for the best method (suggestions please) on how to deploy a 'Measurement' Tool for detecting an edge along a line or radius.
Currently, the edge detection and blob tools with the OpenCV library work well for finding an object of a specified size then determining perimeter and centroid, however I need to be able to place a 'Detection' Tool on the video overlay such that it determines the threshold x,y coordinates for each point where the tool overlays the object.
Let me explain... Assume I'm viewing a circular object such as a dime. I'd like to be able to place a 'SPOKE' tool which looks like an array of lines radiating from the center. when placed over the dime, I want to calculate the X,Y coordinates for the threshold intersection point to be able to fit this data to a circle or perform a measurement. And again, a straight line tool which could be used to determine object/part skew.
There are certainly great examples of this in commercial Machine Vision Toolkits (see image of Spoke tool), however I'd like to do this inside of processing.