posterisaatioon

Posterisaatio is a term originating from the field of image processing and computer graphics. It refers to the process of reducing the number of distinct colors used in an image, effectively simplifying its color palette. This is achieved by grouping similar colors together and assigning them to a single representative color. The result is an image that appears more stylized, often with a distinct, graphic quality, resembling the aesthetic of a poster.

The number of colors, or "levels," in the posterized image is a key parameter that can be adjusted. A lower number of levels leads to a more abstract and simplified image, while a higher number retains more detail and color variation. Posterisaatio can be applied to photographs, digital art, and other forms of visual media. It is often used for artistic effect, to create a retro look, or to reduce the file size of an image by decreasing the amount of color information. The process can be implemented using various algorithms and software tools, and it is a common feature in many image editing applications. While the term suggests a connection to posters, the technique itself is a general method of color quantization.