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Waypoint Extraction
Using the Marker module the current image has now reverted back to the original source. We can once
again apply the RGBFilter but this time for red.
To again remove the noise we add in an Erode and Blob Filter to reduce the number of blobs to the 4 largest.
The Blob filter module again leaves us with an array of BLOBS with 4 sets of x, y coordinates. To keep these points from getting
overwritten by other modules we use the Set Variable module to make a copy of them as "waypoints".
Now it is time to put all the parts together.
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