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| Noise is also present in images. Electronic noise will be present in [[camera]] sensors, and the [[physical]] size of the grains of [[film emulsion]] creates visual noise. This kind of noise is referred to as "grain." | | Noise is also present in images. Electronic noise will be present in [[camera]] sensors, and the [[physical]] size of the grains of [[film emulsion]] creates visual noise. This kind of noise is referred to as "grain." |
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− | Noise is also used in the creation of 2D and 3D images by computer. Sometimes noise is added to images to hide the sudden [[transition]]s inherent in digital representation of [[color]], known as "banding." This adding of noise is referred to as "[[dithering]]." Sometimes noise is used to create the subject matter itself. Procedural noise (such as [http://en.wikipedia.org/wiki/Perlin_noise Perlin noise]) is often used to create natural-looking variation in computer generated images. | + | Noise is also used in the creation of 2D and 3D images by computer. Sometimes noise is added to images to hide the sudden [[transition]]s inherent in digital representation of [[color]], known as "banding." This adding of noise is referred to as "[[dithering]]." Sometimes noise is used to create the subject matter itself. Procedural noise (such as [https://en.wikipedia.org/wiki/Perlin_noise Perlin noise]) is often used to create natural-looking variation in computer generated images. |
| ==Reference== | | ==Reference== |
| Kosko, Bart (2006). Noise. Viking Press. ISBN 0-670-03495-9. | | Kosko, Bart (2006). Noise. Viking Press. ISBN 0-670-03495-9. |
| == External links == | | == External links == |
− | *[http://www.who.int/docstore/peh/noise/guidelines2.html Guidelines for Community Noise, World Health Organization, 1999] | + | *[https://www.who.int/docstore/peh/noise/guidelines2.html Guidelines for Community Noise, World Health Organization, 1999] |
− | *[http://www.lindos.co.uk/cgi-bin/FlexiData.cgi?SOURCE=Articles Audio Measuring Articles - Electronics] | + | *[https://www.lindos.co.uk/cgi-bin/FlexiData.cgi?SOURCE=Articles Audio Measuring Articles - Electronics] |
− | *[http://www.ieee.li/pdf/viewgraphs_mohr_noise.pdf Mohr on Receiver Noise: Characterization, Insights & Surprises] | + | *[https://www.ieee.li/pdf/viewgraphs_mohr_noise.pdf Mohr on Receiver Noise: Characterization, Insights & Surprises] |
− | *[http://www.ieee.li/pdf/viewgraphs_noise.pdf Fundamentals of Electrical Noise] | + | *[https://www.ieee.li/pdf/viewgraphs_noise.pdf Fundamentals of Electrical Noise] |
− | *[http://www.sengpielaudio.com/calculator-noise.htm Noise voltage - Calculation and Measuring of Thermal Noise] | + | *[https://www.sengpielaudio.com/calculator-noise.htm Noise voltage - Calculation and Measuring of Thermal Noise] |
− | *[http://osha.europa.eu/topics/noise Noise at work] European Agency for Safety and Health at Work ([[EU-OSHA]]) | + | *[https://osha.europa.eu/topics/noise Noise at work] European Agency for Safety and Health at Work ([[EU-OSHA]]) |
− | *[http://www.cdc.gov/niosh/topics/noise/ US National Institute for Occupational Safety and Health], - Noise | + | *[https://www.cdc.gov/niosh/topics/noise/ US National Institute for Occupational Safety and Health], - Noise |
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| [[Category: Physics]] | | [[Category: Physics]] |