||It has been suggested that this article be merged into Posterization. (Discuss) Proposed since January 2011.|
||This article needs additional citations for verification. (May 2013)|
Colour banding is a problem of inaccurate colour presentation in computer graphics. In 24 bit colour modes, 8 bits per channel should be enough to render images in the full visible spectrum. However, in some cases there is a risk of producing abrupt changes between shades of the same colour. For instance, displaying natural gradients (like sunsets, dawns or clear blue skies) can show minor banding.
Possible solutions include the introduction of dithering and increasing the number of bits per colour channel.