title: Drawing an image with specific location, size and rotation
body: <p>Are there ways to quickly draw an image with a specific location, size and rotation? Suppose I have a frame and I want to draw an image over it with certain transformations, how would I go about doing that? The image will have an alpha channel so I couldn't just copy it directly:</p>
  
  <pre><code>image = # a loaded image
  x, y, w, h = # some values
  
  # resize
  cv2.resize(image, (w, h))
  # rotation
  # ???
  frame[y:y+h,x:x+w] = image
  </code></pre>
  
  <p>That also doesn't apply rotation.</p>
  
  <p>Are there any quick methods that I can use from OpenCV? If not, how should I implement this?</p>