title: Finding a simple object in a low-quality image
body: <p>I want to do this thing in C# (or any other .NET language), not sure how:
  I have an image I captured from webcam and I want to find a specific simple object in it (let's say a red circle with a black square in it). The red circle can be a bit different from time to time (because of shadows) and the square might be also a bit brighter sometimes and even rotated a bit.</p>