title: Detecting triangles using hough transforms
body: <p>How would you go about detecting a triangle (of known shape) in an image. The environment is uncluttered and mostly free of other objects. Here is an example <img src="https://i.stack.imgur.com/SiNO3.jpg" alt="enter image description here"></p>
  
  <p>I have looked into hough transforms, used HoughLines to detect lines and then some simple python logic for trying to make triangles out of them. This resulted in a loot of noise, and its almost impossible to find the correct triangle. </p>
  
  <p>How would you go about this? </p>