Do you ever think, how Facebook can automatically tag your friend when you upload an image, how your smart phone can recognize you, using it's very advanced and accurate  Face recognition feature.  Have you ever thought how a picture is processed by computer , how a picture  is stored in computer  etc.   These are very few examples, many more will be discussed as we go on, of Computer Vision. Well, In this post we are going to discuss about Computer Vision. So let's get started. What is C omputer Vision ? Computer Vision is a  interdisciplinary field that helps computer to make high-level understanding from digital images and videos to automate the task that human visuals do. It use some techniques  by which computer can understand many useful information from an image and perform some action based on that information. We see an image and our brain can understand the message, delivered by the image. Machines do exactly the same thing. ...