It was a dream since the invention of computers that they would be able to see and think. Though computers became faster and faster day by day, just its speed and memory were not enough to make that dream, a practical. Vision is the task of knowing the surrounding environment by processing the information in visible light. Artificial vision by perceiving and understanding an image in machines is Machine Vision or Computer Vision. Dana H Ballard and Christopher M Brown [1] have defined Computer Vision as "Enterprise of automating and integrating a wide range of processes and representations for vision perception". Computer vision systems rely on image sensors, which detect electromagnetic radiation of either visible or infra-red light. The camera includes a lens similar to lens found in eyes. Tasks such as identifying persons and their activities from an image, summarizing a video when there is no time to watch it completely, looking for accuracy in manufactured products in an industry, identification of path in an environment for movements by robots etc., make use of computer vision algorithms. Many fields of science and technology have contributed to computer vision. Figure 1.1 shows areas which are closely related with computer vision. Different applications make use of different combination of these fields. Artificial Intelligence is a field where computers are expected to exhibit intelligence just like living beings. Natural intelligence is carefully observed and attempt to put the whole concept in machines is being followed in AI. Robotics is another area where electromechanical machines are programmed to carry out tasks like catching a specific object, navigating in an environment etc., Signal Processing deals with different techniques of processing data signals.

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We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first visit or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

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