title: Vector<Vec3b> difference with Vector<int> in OpenCV
body: <p>My project is about the moving puck detection and location finding on hockey table. I need to use <code>HoughCircles</code> to detect the circular form of the puck.
  But for this hough alghoritm I need to make a <code>Vector</code>. I am familiar with <code>Vector</code> concept and how it is working ( basic), but there is problem of differentiating for example <code>Vector&lt;int&gt; Vec</code> and <code>Vector&lt;Vec3b&gt; Vec</code>.</p>
  
  <p>Is it possible to somebody let me know what is their difference in meaning and application?</p>