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Experiment 31. Digital Photography Image Processing

Traditional photography mimicked the human eye by taking an image formed by the interaction of light with a subject and projecting an image of that subject with a lens onto a light-sensitive material. The ultimate purpose is to form a two-dimensional image of a three-dimensional natural subject that is recognizable as the original subject. Unlike traditional photography, digital imaging forms an image of a scene or subject by dividing the projected image into an extremely large number of tiny picture elements (known as pixels) organized into a mosaic array or pattern.