White Goal Post Experiment

wall3As you probably can’t see is the fact that I have placed a white pvc pipe in an orange vice grip and put in front of a white background.  I tried running the image through opencv’s HoughLinesP (image below) and Canny and neither can extract the pipe.  However, I’m not surprised as when I zoom into the image the pixels are pretty much identical in color.

wall hough

So, the only option in my opinion is to use the background netting and us that to find the posts.  Otherwise there is really no hope.  Of course that is my rudimentary findings.