An image is a visual representation of something, real or imagined. Photographs, paintings, drawings, prints, film frames and digital pictures are all images. The word can also mean a picture formed in the mind, as in memory or imagination.
In photography, an image is formed when a lens focuses light onto film or a sensor. The recorded result can then be printed, shown on a screen or shared. Thinkers about photography often ask how a photographic image differs from other images, because it is made directly by light from a real scene.
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