![]() 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. 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. In optics, the term "image" may refer specifically to a 2D image.Īn image does not have to use the entire visual system to be a visual representation. In the context of signal processing, an image is a distributed amplitude of color(s). An image can be an artifact, such as a photograph or other two-dimensional picture, that resembles a subject. It can be two-dimensional, three-dimensional, or somehow otherwise feed into the visual system to convey information. The display of the mobile phone shows the image being made.Īn image is a visual representation of something. The act of making a 2D image with a mobile phone camera.
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