What is so special about this Bingo ball reader? It may seem like an ordinary OCR project at first glance; a camera captures the image and OCR software recognizes the number. Simple as that.

Wide-angle lenses capture a wide view of a scene. They can be used to show wide open landscapes and to highlight or exaggerate the size and scale of a subject. Images can seem distorted around the ...

Focus means how sharp the image is. This can be used to emphasise a certain point - for instance by focusing on an object close to the camera or further away. This can create meaning in an image.