“A per grain simulation of film” by Stephenson
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Title:
- A per grain simulation of film
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Abstract:
Film captures the world in a unique and distinct way which can form an important part of a final image. However digitally captured, or synthesised images lack the characteristics of film, which must be explicitly added if it is to match traditionally captured material, or simply meet aesthetic requirements. Grain is perhaps the most obvious artifact introduced by film, but most existing treatments of film grain in both photography and computer graphics consider grain as a layer of noise added onto a perfect image, amplitude of the noise being modulated by the image density. However real grain forms the visible image, with individual grains either being developable or not. Density is formed by the presence or absence of developed grains, rather than being continuously variable
