Detect cars and buses in images and video using harr cascade.
Sample Cars Image: https://a57.foxnews.com/media.foxbusiness.com/BrightCove/854081161001/201805/2879/931/524/854081161001_5782482890001_5782477388001-vs.jpg
Sample Bus Image: https://qph.fs.quoracdn.net/main-qimg-b5c4e39dcd48dddd9e609e6022f74d85