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| − | {{Glossary}} | + | {{glossary}} |
| − | '''RGB''' (Red, Green, Blue) is a common way of representing colour in a digital image. The colour of each [[pixel]] is represented by three numbers, being the amount of red, green and blue light making up that colour. These are normally 8-bit binary numbers, and so range between 0 and 255 when written in decimal (or x00 and xFF in Hexadecimal)- as seen in colour selectors in photo processing programs. | + | '''R'''ed, '''G'''reen, and '''B'''lue are the primary additive colours in [[colour reproduction]]. A light beam made up of the three colours in equal intensity appears white. |
| − | This leads to the most frequently used [[resolution|colour depth]] of 24 bits.
| + | [[Category:Abbreviations]] |
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| − | There are alternatives to RGB, such as [[CMYK]] - which is often used to specify colours to computer printers.
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| − | RGB is the most popular way to represent colours in digital image files; GIF files use RGB in their indexed colour table, and formats such as [[JPEG]] and [[TIFF]] have RGB as the most favoured option.
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| − | RGB is also a simple method of connecting computer monitors, where colour is represented by three separate analogue signals - and the computer hardware will often use RGB for colour representation.
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| − | [[Category: Digital]] | |
Latest revision as of 13:26, 23 November 2013
Red, Green, and Blue are the primary additive colours in colour reproduction. A light beam made up of the three colours in equal intensity appears white.
