Content deleted Content added
→See also: Range image segmentation |
Added "discrete" as a synonym for "quantum" for clarity in the opening sentence |
||
Line 1:
{{Refimprove|date=November 2012}}
'''Quantization''', involved in [[image processing]], is a [[lossy compression]] technique achieved by compressing a range of values to a single quantum (discrete) value. When the number of discrete symbols in a given stream is reduced, the stream becomes more compressible. For example, reducing the number of colors required to represent a digital [[image]] makes it possible to reduce its file size. Specific applications include [[Discrete cosine transform|DCT]] data quantization in [[JPEG]] and [[Discrete wavelet transform|DWT]] data quantization in [[JPEG 2000]].
== Color quantization ==
| |||