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Artifact that depicts or records visual perception / From Wikipedia, the free encyclopedia

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An image is a visual representation of something. It can be two-dimensional, three-dimensional, or somehow otherwise feed into the visual system to convey information. An image can be an artifact, such as a photograph or other two-dimensional picture, that resembles a subject. In the context of signal processing, an image is a distributed amplitude of color(s).[1]

The act of making a 2D image with a mobile phone camera. The display of the mobile phone shows the image being made.

In optics, the term "image" may refer specifically to a 2D image.

An image does not have to use the entire visual system to be a visual representation. A popular example of this is of a greyscale image, which uses the visual system's sensitivity to brightness across all wavelengths, without taking into account different colors. A black and white visual representation of something is still an image, even though it does not make full use of the visual system's capabilities.

Images are typically still, but in some cases can be moving or animated.