Illumination (image)

Short description: Key element in visual arts

Detail from "The Calling of Matthew" by Caravaggio: a single light source casts shadows and emphasizes any variation in texture

Illumination is an important concept in visual arts.

The illumination of the subject of a drawing or painting is a key element in creating an artistic piece, and the interplay of light and shadow is a valuable method in the artist's toolbox. The placement of the light sources can make a considerable difference in the type of message that is being presented. Multiple light sources can wash out any wrinkles in a person's face, for instance, and give a more youthful appearance. In contrast, a single light source, such as harsh daylight, can serve to highlight any texture or interesting features.

Processing of illumination is an important concept in computer vision and computer graphics.

## See also

* Chiaroscuro

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